diff --git a/packages/protobuf-test/package.json b/packages/protobuf-test/package.json
index 4766a3381..af3004dd9 100644
--- a/packages/protobuf-test/package.json
+++ b/packages/protobuf-test/package.json
@@ -7,10 +7,10 @@
     "postbuild": "cp src/perf-payload.* dist && cp -r src/gen/js* dist/gen",
     "pregenerate": "rm -rf src/gen/*/*",
     "generate": "npm run generate:ts && npm run generate:js && npm run generate:ts,json_types && npm run generate:js,json_types",
-    "generate:ts": "protoc --es_out=src/gen/ts --es_opt=ts_nocheck=false,target=ts,import_extension=.js     --proto_path=. $(buf ls-files extra) --proto_path=$(upstream-include test) $(upstream-files test) google/protobuf/type.proto",
-    "generate:js": "protoc --es_out=src/gen/js --es_opt=ts_nocheck=false,target=js+dts,import_extension=.js --proto_path=. $(buf ls-files extra) --proto_path=$(upstream-include test) $(upstream-files test) google/protobuf/type.proto",
-    "generate:ts,json_types": "protoc --es_out=src/gen/ts,json_types --es_opt=ts_nocheck=false,target=ts,import_extension=.js,json_types=true     --proto_path=. extra/json_types.proto",
-    "generate:js,json_types": "protoc --es_out=src/gen/js,json_types --es_opt=ts_nocheck=false,target=js+dts,import_extension=.js,json_types=true --proto_path=. extra/json_types.proto",
+    "generate:ts": "protoc --es_out=src/gen/ts --es_opt=ts_nocheck=false,target=ts,import_extension=js     --proto_path=. $(buf ls-files extra) --proto_path=$(upstream-include test) $(upstream-files test) google/protobuf/type.proto",
+    "generate:js": "protoc --es_out=src/gen/js --es_opt=ts_nocheck=false,target=js+dts,import_extension=js --proto_path=. $(buf ls-files extra) --proto_path=$(upstream-include test) $(upstream-files test) google/protobuf/type.proto",
+    "generate:ts,json_types": "protoc --es_out=src/gen/ts,json_types --es_opt=ts_nocheck=false,target=ts,import_extension=js,json_types=true     --proto_path=. extra/json_types.proto",
+    "generate:js,json_types": "protoc --es_out=src/gen/js,json_types --es_opt=ts_nocheck=false,target=js+dts,import_extension=js,json_types=true --proto_path=. extra/json_types.proto",
     "postgenerate": "license-header src/gen",
     "perf": "tsx src/perf.ts benchmark '.*'",
     "profile": "dexnode dist/esm/perf.js run 'fromBinary perf-payload.bin' 10000",
diff --git a/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.d.ts b/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.d.ts
index 297497e5d..d0a8e021e 100644
--- a/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js,json_types=true"
 // @generated from file extra/json_types.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.js b/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.js
index 37c4a5c7a..7b15d8cb6 100644
--- a/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.js
+++ b/packages/protobuf-test/src/gen/js,json_types/extra/json_types_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js,json_types=true"
 // @generated from file extra/json_types.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.d.ts b/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.d.ts
index a99992005..969452547 100644
--- a/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file editions/golden/test_messages_proto3_editions.proto (package protobuf_test_messages.editions.proto3, edition 2023)
 // option features.field_presence = IMPLICIT;
 /* eslint-disable */
diff --git a/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.js b/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.js
index 8fcdd7d93..9f0e61fe2 100644
--- a/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.js
+++ b/packages/protobuf-test/src/gen/js/editions/golden/test_messages_proto3_editions_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file editions/golden/test_messages_proto3_editions.proto (package protobuf_test_messages.editions.proto3, edition 2023)
 // option features.field_presence = IMPLICIT;
 /* eslint-disable */
diff --git a/packages/protobuf-test/src/gen/js/extra/comments_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/comments_pb.d.ts
index 0f1d6634b..f81d8df0b 100644
--- a/packages/protobuf-test/src/gen/js/extra/comments_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/comments_pb.d.ts
@@ -16,7 +16,7 @@
 
 // Comment before syntax.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/comments.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/comments_pb.js b/packages/protobuf-test/src/gen/js/extra/comments_pb.js
index 3b7640324..c00052cee 100644
--- a/packages/protobuf-test/src/gen/js/extra/comments_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/comments_pb.js
@@ -16,7 +16,7 @@
 
 // Comment before syntax.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/comments.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.d.ts
index 42cd11fa8..410a9deb7 100644
--- a/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/deprecation-explicit.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.js b/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.js
index bcb33a94c..98fdc1203 100644
--- a/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/deprecation-explicit_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/deprecation-explicit.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.d.ts
index d4a41e488..768b2f5e8 100644
--- a/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/deprecation-implicit.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.js b/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.js
index 4c630eef2..b5bd2f44a 100644
--- a/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/deprecation-implicit_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/deprecation-implicit.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.d.ts
index 8b512368c..3ada19bf9 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023-map-encoding.proto (package spec, edition 2023)
 // option features.message_encoding = DELIMITED;
 /* eslint-disable */
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.js b/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.js
index c373d2766..848821c5f 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023-map-encoding_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023-map-encoding.proto (package spec, edition 2023)
 // option features.message_encoding = DELIMITED;
 /* eslint-disable */
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.d.ts
index 92994bbe0..cac762d3e 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023-proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.js b/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.js
index f517e561b..8d7dc144f 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023-proto2_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023-proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.d.ts
index c32871cf5..faa1b3de5 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023-proto3.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.js b/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.js
index 7a51ed0ea..319bfecbd 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023-proto3_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023-proto3.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/edition2023_pb.d.ts
index 96bfe70d8..cc112a4b6 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023.proto (package spec, edition 2023)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/edition2023_pb.js b/packages/protobuf-test/src/gen/js/extra/edition2023_pb.js
index e67679f43..8a7292d4f 100644
--- a/packages/protobuf-test/src/gen/js/extra/edition2023_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/edition2023_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/edition2023.proto (package spec, edition 2023)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/empty-file_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/empty-file_pb.d.ts
index 459acb8b3..987fb00bf 100644
--- a/packages/protobuf-test/src/gen/js/extra/empty-file_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/empty-file_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/empty-file.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/empty-file_pb.js b/packages/protobuf-test/src/gen/js/extra/empty-file_pb.js
index bc165dd4d..bee5b7da7 100644
--- a/packages/protobuf-test/src/gen/js/extra/empty-file_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/empty-file_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/empty-file.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/example_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/example_pb.d.ts
index 9b89e4c01..7f2fc0946 100644
--- a/packages/protobuf-test/src/gen/js/extra/example_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/example_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/example.proto (package docs, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/example_pb.js b/packages/protobuf-test/src/gen/js/extra/example_pb.js
index 05ff651d0..4559e7302 100644
--- a/packages/protobuf-test/src/gen/js/extra/example_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/example_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/example.proto (package docs, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.d.ts
index afaa68978..1f0b3af4d 100644
--- a/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/extensions-proto2.proto (package proto2ext, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.js b/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.js
index daa850227..3d0490477 100644
--- a/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/extensions-proto2_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/extensions-proto2.proto (package proto2ext, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.d.ts
index 2fbeaee66..2cadde5be 100644
--- a/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/extensions-proto3.proto (package proto3ext, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.js b/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.js
index 65d2a7436..a5a56c7f7 100644
--- a/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/extensions-proto3_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/extensions-proto3.proto (package proto3ext, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/json_types_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/json_types_pb.d.ts
index 4cb964812..123404e83 100644
--- a/packages/protobuf-test/src/gen/js/extra/json_types_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/json_types_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/json_types.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/json_types_pb.js b/packages/protobuf-test/src/gen/js/extra/json_types_pb.js
index c8d3ee0ab..7ed989e26 100644
--- a/packages/protobuf-test/src/gen/js/extra/json_types_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/json_types_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/json_types.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.d.ts
index e4abc885e..db4a5896a 100644
--- a/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/jstype-proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.js b/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.js
index b2f820a58..59a6a68bc 100644
--- a/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/jstype-proto2_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/jstype-proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.d.ts
index 88009b07d..9ecab933d 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-json-names.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.js b/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.js
index 0df454d5c..80915f7f5 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/msg-json-names_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-json-names.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.d.ts
index a82222cfd..99ac58b7b 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-maps.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.js b/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.js
index 4d6c27920..8bf1c34aa 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/msg-maps_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-maps.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-message_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/msg-message_pb.d.ts
index e7f593617..003ca8c05 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-message_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/msg-message_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-message.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-message_pb.js b/packages/protobuf-test/src/gen/js/extra/msg-message_pb.js
index 01335cf62..28da5d780 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-message_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/msg-message_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-message.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.d.ts
index 6bcaa449b..dbc4e0c2e 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-oneof.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.js b/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.js
index a8166dcc8..5d4ef4405 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/msg-oneof_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-oneof.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.d.ts
index 0889f6e04..b92f97213 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-scalar.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.js b/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.js
index b1b5b07bb..66dbbe21c 100644
--- a/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/msg-scalar_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/msg-scalar.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/name-clash_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/name-clash_pb.d.ts
index 9878e7029..ca39f0e87 100644
--- a/packages/protobuf-test/src/gen/js/extra/name-clash_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/name-clash_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/name-clash.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/name-clash_pb.js b/packages/protobuf-test/src/gen/js/extra/name-clash_pb.js
index 9422885a3..6f36ea959 100644
--- a/packages/protobuf-test/src/gen/js/extra/name-clash_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/name-clash_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/name-clash.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/option-usage_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/option-usage_pb.d.ts
index 86f764bf8..d38860351 100644
--- a/packages/protobuf-test/src/gen/js/extra/option-usage_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/option-usage_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/option-usage.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/option-usage_pb.js b/packages/protobuf-test/src/gen/js/extra/option-usage_pb.js
index 25b43e5f0..66075e3ec 100644
--- a/packages/protobuf-test/src/gen/js/extra/option-usage_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/option-usage_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/option-usage.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/options_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/options_pb.d.ts
index 145b6adb0..0fa949aa8 100644
--- a/packages/protobuf-test/src/gen/js/extra/options_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/options_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/options.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/options_pb.js b/packages/protobuf-test/src/gen/js/extra/options_pb.js
index f883347b4..dfc342bd0 100644
--- a/packages/protobuf-test/src/gen/js/extra/options_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/options_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/options.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/perf_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/perf_pb.d.ts
index 6e702f08a..f70da7cf3 100644
--- a/packages/protobuf-test/src/gen/js/extra/perf_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/perf_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/perf.proto (package perf.v1, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/perf_pb.js b/packages/protobuf-test/src/gen/js/extra/perf_pb.js
index ce423bfd2..78c8416f4 100644
--- a/packages/protobuf-test/src/gen/js/extra/perf_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/perf_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/perf.proto (package perf.v1, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/proto2_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/proto2_pb.d.ts
index d53c0f79c..0c1cea0a9 100644
--- a/packages/protobuf-test/src/gen/js/extra/proto2_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/proto2_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/proto2_pb.js b/packages/protobuf-test/src/gen/js/extra/proto2_pb.js
index c4febba61..370e6fe3d 100644
--- a/packages/protobuf-test/src/gen/js/extra/proto2_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/proto2_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/proto3_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/proto3_pb.d.ts
index c1c7c8de9..e7ed9eef7 100644
--- a/packages/protobuf-test/src/gen/js/extra/proto3_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/proto3_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/proto3.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/proto3_pb.js b/packages/protobuf-test/src/gen/js/extra/proto3_pb.js
index 9a42d155b..ba86781b2 100644
--- a/packages/protobuf-test/src/gen/js/extra/proto3_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/proto3_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/proto3.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/service-all_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/service-all_pb.d.ts
index cdff4921b..c40b80460 100644
--- a/packages/protobuf-test/src/gen/js/extra/service-all_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/service-all_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/service-all.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/service-all_pb.js b/packages/protobuf-test/src/gen/js/extra/service-all_pb.js
index 5f0e20441..07bd37c18 100644
--- a/packages/protobuf-test/src/gen/js/extra/service-all_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/service-all_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/service-all.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/service-example_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/service-example_pb.d.ts
index d948689ef..a1262a66f 100644
--- a/packages/protobuf-test/src/gen/js/extra/service-example_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/service-example_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/service-example.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/service-example_pb.js b/packages/protobuf-test/src/gen/js/extra/service-example_pb.js
index e209a1ed5..3f7efd886 100644
--- a/packages/protobuf-test/src/gen/js/extra/service-example_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/service-example_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/service-example.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.d.ts b/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.d.ts
index e85ec17d4..5e26ad2e3 100644
--- a/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/wkt-wrappers.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.js b/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.js
index 9797b6df3..d484e9c12 100644
--- a/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.js
+++ b/packages/protobuf-test/src/gen/js/extra/wkt-wrappers_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file extra/wkt-wrappers.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.d.ts
index 8448a4128..620502beb 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/map_proto2_unittest.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.js
index fbe44a341..3c9fc7296 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/map_proto2_unittest_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/map_proto2_unittest.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.d.ts
index 5ef261654..e7e8816ca 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.d.ts
@@ -14,7 +14,7 @@
 
 // LINT: ALLOW_GROUPS
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/test_messages_proto2.proto (package protobuf_test_messages.proto2, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.js
index f8181132e..c988e2a74 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto2_pb.js
@@ -14,7 +14,7 @@
 
 // LINT: ALLOW_GROUPS
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/test_messages_proto2.proto (package protobuf_test_messages.proto2, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.d.ts
index ad9632963..ac57daeb2 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/test_messages_proto3.proto (package protobuf_test_messages.proto3, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.js
index 364d255d7..4bddecf0f 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/test_messages_proto3_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/test_messages_proto3.proto (package protobuf_test_messages.proto3, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.d.ts
index 0b3f434b8..304802ed0 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/type.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.js
index 5d41c2f80..d1a1185f4 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/type_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/type.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.d.ts
index cf22ce8ca..2a8ccbf37 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.d.ts
@@ -18,7 +18,7 @@
 //
 // A proto file used to test the "custom options" feature of google.protobuf.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_custom_options.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.js
index c9846d757..9aa730731 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_custom_options_pb.js
@@ -18,7 +18,7 @@
 //
 // A proto file used to test the "custom options" feature of google.protobuf.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_custom_options.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.d.ts
index 3fa9cb2e4..8e90c1565 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.d.ts
@@ -18,7 +18,7 @@
 //
 // A proto file which imports a proto file that uses optimize_for = CODE_SIZE.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_embed_optimize_for.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.js
index fac3de5a1..6916ff4c2 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_embed_optimize_for_pb.js
@@ -18,7 +18,7 @@
 //
 // A proto file which imports a proto file that uses optimize_for = CODE_SIZE.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_embed_optimize_for.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.d.ts
index 9ef89fcc3..babac9bbe 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.d.ts
@@ -28,7 +28,7 @@
 // This file intentionally left blank.  (At one point this wouldn't compile
 // correctly.)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_empty.proto (syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.js
index 6898db5a0..83c37fc1e 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_empty_pb.js
@@ -28,7 +28,7 @@
 // This file intentionally left blank.  (At one point this wouldn't compile
 // correctly.)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_empty.proto (syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.d.ts
index 82a235ce5..9a15c7561 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.d.ts
@@ -21,7 +21,7 @@
 // descriptors over 64k don't break language-specific limits in generated code,
 // such as the string literal length limit in Java.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_enormous_descriptor.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.js
index 9907294aa..b557c4096 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_enormous_descriptor_pb.js
@@ -21,7 +21,7 @@
 // descriptors over 64k don't break language-specific limits in generated code,
 // such as the string literal length limit in Java.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_enormous_descriptor.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.d.ts
index 7e5b0d564..9bbbd3673 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.d.ts
@@ -18,7 +18,7 @@
 //
 // This file contains messages for testing extensions.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_extension_set.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.js
index b7bb0177a..6bd2ffe92 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_extension_set_pb.js
@@ -18,7 +18,7 @@
 //
 // This file contains messages for testing extensions.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_extension_set.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.d.ts
index 44d7a41c5..3b2f56f6c 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_features.proto (package pb, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.js
index 3a0e10a6c..be97183d2 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_features_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_features.proto (package pb, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.d.ts
index b8b21faf8..4a0096b1f 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.d.ts
@@ -18,7 +18,7 @@
 //
 // A proto file which is imported by unittest.proto to test importing.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_import.proto (package protobuf_unittest_import, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.js
index 1cc2316f1..3898bd6fd 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_pb.js
@@ -18,7 +18,7 @@
 //
 // A proto file which is imported by unittest.proto to test importing.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_import.proto (package protobuf_unittest_import, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.d.ts
index b296e8cc3..664178462 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.d.ts
@@ -14,7 +14,7 @@
 
 // Author: liujisi@google.com (Pherl Liu)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_import_public.proto (package protobuf_unittest_import, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.js
index 2aada9479..2f50399be 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_import_public_pb.js
@@ -14,7 +14,7 @@
 
 // Author: liujisi@google.com (Pherl Liu)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_import_public.proto (package protobuf_unittest_import, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.d.ts
index 2cdedd806..0e5803831 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_invalid_features.proto (package pb, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.js
index 44026e570..0d1f57f1f 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_invalid_features_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_invalid_features.proto (package pb, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.d.ts
index 14eab8cd0..547a1759c 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.d.ts
@@ -16,7 +16,7 @@
 //
 // Tests that a "lite" message can import a regular message.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_lite_imports_nonlite.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.js
index 21d293314..2b02046c8 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_lite_imports_nonlite_pb.js
@@ -16,7 +16,7 @@
 //
 // Tests that a "lite" message can import a regular message.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_lite_imports_nonlite.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.d.ts
index 3d371b7d4..19907a444 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.d.ts
@@ -19,7 +19,7 @@
 // This file is similar to unittest_mset_wire_format.proto, but does not
 // have a TestMessageSet, so it can be downgraded to proto1.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_mset.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.js
index 707d69b44..b2a6834b6 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_pb.js
@@ -19,7 +19,7 @@
 // This file is similar to unittest_mset_wire_format.proto, but does not
 // have a TestMessageSet, so it can be downgraded to proto1.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_mset.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.d.ts
index 7b1da82ab..9ae59d807 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.d.ts
@@ -18,7 +18,7 @@
 //
 // This file contains messages for testing message_set_wire_format.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_mset_wire_format.proto (package proto2_wireformat_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.js
index 16e1f6cba..92c054668 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_mset_wire_format_pb.js
@@ -18,7 +18,7 @@
 //
 // This file contains messages for testing message_set_wire_format.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_mset_wire_format.proto (package proto2_wireformat_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.d.ts
index a5133b6ce..fd98743c6 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.d.ts
@@ -14,7 +14,7 @@
 
 // Author: kenton@google.com (Kenton Varda)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_no_generic_services.proto (package protobuf_unittest.no_generic_services_test, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.js
index 2406d7b30..4f56bed7b 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_no_generic_services_pb.js
@@ -14,7 +14,7 @@
 
 // Author: kenton@google.com (Kenton Varda)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_no_generic_services.proto (package protobuf_unittest.no_generic_services_test, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.d.ts
index 4b81348a5..3c91315ed 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.d.ts
@@ -18,7 +18,7 @@
 //
 // A proto file which uses optimize_for = CODE_SIZE.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_optimize_for.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.js
index fda508a67..941826229 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_optimize_for_pb.js
@@ -18,7 +18,7 @@
 //
 // A proto file which uses optimize_for = CODE_SIZE.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_optimize_for.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.d.ts
index b30b73338..55b651ebd 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.d.ts
@@ -20,7 +20,7 @@
 //
 // LINT: ALLOW_GROUPS, LEGACY_NAMES
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.js
index 24f59e471..2bd57e622 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_pb.js
@@ -20,7 +20,7 @@
 //
 // LINT: ALLOW_GROUPS, LEGACY_NAMES
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.d.ts
index 603650564..1103e176c 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3_bad_macros.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.js
index c6cce0b4f..270e3b322 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_bad_macros_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3_bad_macros.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.d.ts
index 722e3db5e..d591f5e55 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3_optional.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.js
index 315b8ee41..6fb01fcd8 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_optional_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3_optional.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.d.ts
index 087f50516..a2fe93647 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3.proto (package proto3_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.js
index a4ac0835d..0deb0e195 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_proto3_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3.proto (package proto3_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.d.ts
index 2ebab3966..a452f153f 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_retention.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.js
index e9329da91..dfb3a8e10 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_retention_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_retention.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.d.ts b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.d.ts
index ba0d5fd29..ae2131242 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.d.ts
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.d.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_well_known_types.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.js b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.js
index ff1f55c96..52138701e 100644
--- a/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.js
+++ b/packages/protobuf-test/src/gen/js/google/protobuf/unittest_well_known_types_pb.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=js+dts,import_extension=js"
 // @generated from file google/protobuf/unittest_well_known_types.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts,json_types/extra/json_types_pb.ts b/packages/protobuf-test/src/gen/ts,json_types/extra/json_types_pb.ts
index f2e92b5d0..736752568 100644
--- a/packages/protobuf-test/src/gen/ts,json_types/extra/json_types_pb.ts
+++ b/packages/protobuf-test/src/gen/ts,json_types/extra/json_types_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js,json_types=true"
 // @generated from file extra/json_types.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/editions/golden/test_messages_proto3_editions_pb.ts b/packages/protobuf-test/src/gen/ts/editions/golden/test_messages_proto3_editions_pb.ts
index d184cff02..e2e367a53 100644
--- a/packages/protobuf-test/src/gen/ts/editions/golden/test_messages_proto3_editions_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/editions/golden/test_messages_proto3_editions_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file editions/golden/test_messages_proto3_editions.proto (package protobuf_test_messages.editions.proto3, edition 2023)
 // option features.field_presence = IMPLICIT;
 /* eslint-disable */
diff --git a/packages/protobuf-test/src/gen/ts/extra/comments_pb.ts b/packages/protobuf-test/src/gen/ts/extra/comments_pb.ts
index 406f8caa1..cdac34486 100644
--- a/packages/protobuf-test/src/gen/ts/extra/comments_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/comments_pb.ts
@@ -16,7 +16,7 @@
 
 // Comment before syntax.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/comments.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/deprecation-explicit_pb.ts b/packages/protobuf-test/src/gen/ts/extra/deprecation-explicit_pb.ts
index a9eaf1994..bf7768d55 100644
--- a/packages/protobuf-test/src/gen/ts/extra/deprecation-explicit_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/deprecation-explicit_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/deprecation-explicit.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/deprecation-implicit_pb.ts b/packages/protobuf-test/src/gen/ts/extra/deprecation-implicit_pb.ts
index 08c4ba32a..d00393d22 100644
--- a/packages/protobuf-test/src/gen/ts/extra/deprecation-implicit_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/deprecation-implicit_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/deprecation-implicit.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/edition2023-map-encoding_pb.ts b/packages/protobuf-test/src/gen/ts/extra/edition2023-map-encoding_pb.ts
index e713c73e3..a1e22e3b9 100644
--- a/packages/protobuf-test/src/gen/ts/extra/edition2023-map-encoding_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/edition2023-map-encoding_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/edition2023-map-encoding.proto (package spec, edition 2023)
 // option features.message_encoding = DELIMITED;
 /* eslint-disable */
diff --git a/packages/protobuf-test/src/gen/ts/extra/edition2023-proto2_pb.ts b/packages/protobuf-test/src/gen/ts/extra/edition2023-proto2_pb.ts
index bce07bd76..9fcfcf63d 100644
--- a/packages/protobuf-test/src/gen/ts/extra/edition2023-proto2_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/edition2023-proto2_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/edition2023-proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/edition2023-proto3_pb.ts b/packages/protobuf-test/src/gen/ts/extra/edition2023-proto3_pb.ts
index 5fa54d81c..52e31f467 100644
--- a/packages/protobuf-test/src/gen/ts/extra/edition2023-proto3_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/edition2023-proto3_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/edition2023-proto3.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/edition2023_pb.ts b/packages/protobuf-test/src/gen/ts/extra/edition2023_pb.ts
index 3a8f91413..e37e994e2 100644
--- a/packages/protobuf-test/src/gen/ts/extra/edition2023_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/edition2023_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/edition2023.proto (package spec, edition 2023)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/empty-file_pb.ts b/packages/protobuf-test/src/gen/ts/extra/empty-file_pb.ts
index 44e7cbb6d..f852c98b1 100644
--- a/packages/protobuf-test/src/gen/ts/extra/empty-file_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/empty-file_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/empty-file.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/example_pb.ts b/packages/protobuf-test/src/gen/ts/extra/example_pb.ts
index e1e5704a5..85ba06faa 100644
--- a/packages/protobuf-test/src/gen/ts/extra/example_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/example_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/example.proto (package docs, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/extensions-proto2_pb.ts b/packages/protobuf-test/src/gen/ts/extra/extensions-proto2_pb.ts
index ce3f47231..e23b56206 100644
--- a/packages/protobuf-test/src/gen/ts/extra/extensions-proto2_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/extensions-proto2_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/extensions-proto2.proto (package proto2ext, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/extensions-proto3_pb.ts b/packages/protobuf-test/src/gen/ts/extra/extensions-proto3_pb.ts
index 6610cfde4..ea77868f2 100644
--- a/packages/protobuf-test/src/gen/ts/extra/extensions-proto3_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/extensions-proto3_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/extensions-proto3.proto (package proto3ext, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/json_types_pb.ts b/packages/protobuf-test/src/gen/ts/extra/json_types_pb.ts
index b4bacada2..e3a7fd6e3 100644
--- a/packages/protobuf-test/src/gen/ts/extra/json_types_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/json_types_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/json_types.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/jstype-proto2_pb.ts b/packages/protobuf-test/src/gen/ts/extra/jstype-proto2_pb.ts
index 2ce184bc4..7c12d1610 100644
--- a/packages/protobuf-test/src/gen/ts/extra/jstype-proto2_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/jstype-proto2_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/jstype-proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/msg-json-names_pb.ts b/packages/protobuf-test/src/gen/ts/extra/msg-json-names_pb.ts
index 77d1137f3..fe10e3d14 100644
--- a/packages/protobuf-test/src/gen/ts/extra/msg-json-names_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/msg-json-names_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/msg-json-names.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/msg-maps_pb.ts b/packages/protobuf-test/src/gen/ts/extra/msg-maps_pb.ts
index 4d64ef66e..9b02c514f 100644
--- a/packages/protobuf-test/src/gen/ts/extra/msg-maps_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/msg-maps_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/msg-maps.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/msg-message_pb.ts b/packages/protobuf-test/src/gen/ts/extra/msg-message_pb.ts
index 942cfb714..0453502b3 100644
--- a/packages/protobuf-test/src/gen/ts/extra/msg-message_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/msg-message_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/msg-message.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/msg-oneof_pb.ts b/packages/protobuf-test/src/gen/ts/extra/msg-oneof_pb.ts
index 9f1dae941..140927d15 100644
--- a/packages/protobuf-test/src/gen/ts/extra/msg-oneof_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/msg-oneof_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/msg-oneof.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/msg-scalar_pb.ts b/packages/protobuf-test/src/gen/ts/extra/msg-scalar_pb.ts
index 2f87e00fe..2805ecd5a 100644
--- a/packages/protobuf-test/src/gen/ts/extra/msg-scalar_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/msg-scalar_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/msg-scalar.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/name-clash_pb.ts b/packages/protobuf-test/src/gen/ts/extra/name-clash_pb.ts
index 600149d24..4d0a2e190 100644
--- a/packages/protobuf-test/src/gen/ts/extra/name-clash_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/name-clash_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/name-clash.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/option-usage_pb.ts b/packages/protobuf-test/src/gen/ts/extra/option-usage_pb.ts
index c9b118929..a019560b1 100644
--- a/packages/protobuf-test/src/gen/ts/extra/option-usage_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/option-usage_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/option-usage.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/options_pb.ts b/packages/protobuf-test/src/gen/ts/extra/options_pb.ts
index db7110fb2..bed99ef39 100644
--- a/packages/protobuf-test/src/gen/ts/extra/options_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/options_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/options.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/perf_pb.ts b/packages/protobuf-test/src/gen/ts/extra/perf_pb.ts
index cb0bffe40..9db13b5c2 100644
--- a/packages/protobuf-test/src/gen/ts/extra/perf_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/perf_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/perf.proto (package perf.v1, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/proto2_pb.ts b/packages/protobuf-test/src/gen/ts/extra/proto2_pb.ts
index e0c330f93..3a5839a1c 100644
--- a/packages/protobuf-test/src/gen/ts/extra/proto2_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/proto2_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/proto2.proto (package spec, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/proto3_pb.ts b/packages/protobuf-test/src/gen/ts/extra/proto3_pb.ts
index dc49817f1..f0944bb26 100644
--- a/packages/protobuf-test/src/gen/ts/extra/proto3_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/proto3_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/proto3.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/service-all_pb.ts b/packages/protobuf-test/src/gen/ts/extra/service-all_pb.ts
index ef5044ebf..340b54525 100644
--- a/packages/protobuf-test/src/gen/ts/extra/service-all_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/service-all_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/service-all.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/service-example_pb.ts b/packages/protobuf-test/src/gen/ts/extra/service-example_pb.ts
index 32e51ee4d..580d15bf0 100644
--- a/packages/protobuf-test/src/gen/ts/extra/service-example_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/service-example_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/service-example.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/extra/wkt-wrappers_pb.ts b/packages/protobuf-test/src/gen/ts/extra/wkt-wrappers_pb.ts
index e0647ffef..bdc741b83 100644
--- a/packages/protobuf-test/src/gen/ts/extra/wkt-wrappers_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/extra/wkt-wrappers_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file extra/wkt-wrappers.proto (package spec, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/map_proto2_unittest_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/map_proto2_unittest_pb.ts
index 92a139727..0cf3afc9c 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/map_proto2_unittest_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/map_proto2_unittest_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/map_proto2_unittest.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto2_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto2_pb.ts
index 3052b211c..e0583c0fd 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto2_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto2_pb.ts
@@ -14,7 +14,7 @@
 
 // LINT: ALLOW_GROUPS
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/test_messages_proto2.proto (package protobuf_test_messages.proto2, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto3_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto3_pb.ts
index 7b7db9c18..68d891588 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto3_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/test_messages_proto3_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/test_messages_proto3.proto (package protobuf_test_messages.proto3, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/type_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/type_pb.ts
index 4ba76e4ca..ef79adef0 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/type_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/type_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/type.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_custom_options_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_custom_options_pb.ts
index 68536c01e..2129b61a7 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_custom_options_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_custom_options_pb.ts
@@ -18,7 +18,7 @@
 //
 // A proto file used to test the "custom options" feature of google.protobuf.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_custom_options.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_embed_optimize_for_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_embed_optimize_for_pb.ts
index 6e8f209ee..ac8dc3c13 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_embed_optimize_for_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_embed_optimize_for_pb.ts
@@ -18,7 +18,7 @@
 //
 // A proto file which imports a proto file that uses optimize_for = CODE_SIZE.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_embed_optimize_for.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_empty_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_empty_pb.ts
index 79b2f571d..40bd7e869 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_empty_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_empty_pb.ts
@@ -28,7 +28,7 @@
 // This file intentionally left blank.  (At one point this wouldn't compile
 // correctly.)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_empty.proto (syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_enormous_descriptor_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_enormous_descriptor_pb.ts
index b206fe693..ffe1f94b8 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_enormous_descriptor_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_enormous_descriptor_pb.ts
@@ -21,7 +21,7 @@
 // descriptors over 64k don't break language-specific limits in generated code,
 // such as the string literal length limit in Java.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_enormous_descriptor.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_extension_set_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_extension_set_pb.ts
index 56053280c..5a1877759 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_extension_set_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_extension_set_pb.ts
@@ -18,7 +18,7 @@
 //
 // This file contains messages for testing extensions.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_extension_set.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_features_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_features_pb.ts
index b246b0943..1f6e3dab0 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_features_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_features_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_features.proto (package pb, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_pb.ts
index 9e7d1f95d..3ad5b6515 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_pb.ts
@@ -18,7 +18,7 @@
 //
 // A proto file which is imported by unittest.proto to test importing.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_import.proto (package protobuf_unittest_import, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_public_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_public_pb.ts
index 94a68f0e1..4839f1ebe 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_public_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_import_public_pb.ts
@@ -14,7 +14,7 @@
 
 // Author: liujisi@google.com (Pherl Liu)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_import_public.proto (package protobuf_unittest_import, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_invalid_features_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_invalid_features_pb.ts
index b38b82898..e8c156175 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_invalid_features_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_invalid_features_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_invalid_features.proto (package pb, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_lite_imports_nonlite_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_lite_imports_nonlite_pb.ts
index 2283cf667..585c6468d 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_lite_imports_nonlite_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_lite_imports_nonlite_pb.ts
@@ -16,7 +16,7 @@
 //
 // Tests that a "lite" message can import a regular message.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_lite_imports_nonlite.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_pb.ts
index 86319e751..11bbe6869 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_pb.ts
@@ -19,7 +19,7 @@
 // This file is similar to unittest_mset_wire_format.proto, but does not
 // have a TestMessageSet, so it can be downgraded to proto1.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_mset.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_wire_format_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_wire_format_pb.ts
index 12f72ee2f..7575f9cf7 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_wire_format_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_mset_wire_format_pb.ts
@@ -18,7 +18,7 @@
 //
 // This file contains messages for testing message_set_wire_format.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_mset_wire_format.proto (package proto2_wireformat_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_no_generic_services_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_no_generic_services_pb.ts
index e8548cadc..e3dbd4ff2 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_no_generic_services_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_no_generic_services_pb.ts
@@ -14,7 +14,7 @@
 
 // Author: kenton@google.com (Kenton Varda)
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_no_generic_services.proto (package protobuf_unittest.no_generic_services_test, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_optimize_for_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_optimize_for_pb.ts
index 85b08024a..3c217094b 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_optimize_for_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_optimize_for_pb.ts
@@ -18,7 +18,7 @@
 //
 // A proto file which uses optimize_for = CODE_SIZE.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_optimize_for.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_pb.ts
index 303768e28..02a217248 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_pb.ts
@@ -20,7 +20,7 @@
 //
 // LINT: ALLOW_GROUPS, LEGACY_NAMES
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_bad_macros_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_bad_macros_pb.ts
index a92d06d3e..48808f792 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_bad_macros_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_bad_macros_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3_bad_macros.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_optional_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_optional_pb.ts
index e9d474b05..e6b7fed1b 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_optional_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_optional_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3_optional.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_pb.ts
index 98442a888..664b796a8 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_proto3_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_proto3.proto (package proto3_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_retention_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_retention_pb.ts
index d7e18cc92..16ff96b4c 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_retention_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_retention_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_retention.proto (package protobuf_unittest, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_well_known_types_pb.ts b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_well_known_types_pb.ts
index e57c5a4cb..3f6b89211 100644
--- a/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_well_known_types_pb.ts
+++ b/packages/protobuf-test/src/gen/ts/google/protobuf/unittest_well_known_types_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=.js"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "ts_nocheck=false,target=ts,import_extension=js"
 // @generated from file google/protobuf/unittest_well_known_types.proto (package protobuf_unittest, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/package.json b/packages/protobuf/package.json
index 383bf9e39..a57a884d0 100644
--- a/packages/protobuf/package.json
+++ b/packages/protobuf/package.json
@@ -15,7 +15,7 @@
     "build:esm": "../../node_modules/typescript/bin/tsc --project tsconfig.json --outDir ./dist/esm",
     "bootstrap:inject": "node scripts/bootstrap-inject.mjs src",
     "prebootstrap:wkt": "rm -rf .tmp && mkdir -p .tmp && cp -rp src/wkt/gen/* .tmp",
-    "bootstrap:wkt": "protoc --es_out=src/wkt/gen --es_opt=bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true --proto_path $(upstream-include wkt) $(upstream-files wkt) && license-header src/wkt/gen",
+    "bootstrap:wkt": "protoc --es_out=src/wkt/gen --es_opt=bootstrap_wkt=true,target=ts,import_extension=js,json_types=true --proto_path $(upstream-include wkt) $(upstream-files wkt) && license-header src/wkt/gen",
     "postbootstrap:wkt": "diff >/dev/null -r .tmp src/wkt/gen && cp -rp .tmp/* src/wkt/gen || true",
     "format": "prettier --write --ignore-unknown '.' '!dist' '!src/wkt/gen'",
     "license-header": "license-header --ignore 'src/wire/varint.ts'",
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/any_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/any_pb.ts
index 66d38b4e9..722f2be59 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/any_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/any_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/any.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/api_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/api_pb.ts
index 7f5ccaab8..76a2e54f3 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/api_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/api_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/api.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/compiler/plugin_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/compiler/plugin_pb.ts
index 168672491..dd367132d 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/compiler/plugin_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/compiler/plugin_pb.ts
@@ -25,7 +25,7 @@
 // plugin should be named "protoc-gen-$NAME", and will then be used when the
 // flag "--${NAME}_out" is passed to protoc.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/compiler/plugin.proto (package google.protobuf.compiler, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/descriptor_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/descriptor_pb.ts
index d3ae291ba..83e233323 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/descriptor_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/descriptor_pb.ts
@@ -20,7 +20,7 @@
 // A valid .proto file can be translated directly to a FileDescriptorProto
 // without any other information (e.g. without reading its imports).
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/descriptor.proto (package google.protobuf, syntax proto2)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/duration_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/duration_pb.ts
index 2bbccd3d0..483b4b03b 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/duration_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/duration_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/duration.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/empty_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/empty_pb.ts
index beb9cd1fb..847200bac 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/empty_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/empty_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/empty.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/field_mask_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/field_mask_pb.ts
index ad89e7746..644208b5c 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/field_mask_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/field_mask_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/field_mask.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/source_context_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/source_context_pb.ts
index 807bd95b9..fcab3e9f3 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/source_context_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/source_context_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/source_context.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/struct_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/struct_pb.ts
index d3af26018..6b802d632 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/struct_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/struct_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/struct.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/timestamp_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/timestamp_pb.ts
index a92cf544c..d5e1e3361 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/timestamp_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/timestamp_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/timestamp.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/type_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/type_pb.ts
index c2eaef566..f15199de0 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/type_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/type_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/type.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protobuf/src/wkt/gen/google/protobuf/wrappers_pb.ts b/packages/protobuf/src/wkt/gen/google/protobuf/wrappers_pb.ts
index d36d57f90..2faca9043 100644
--- a/packages/protobuf/src/wkt/gen/google/protobuf/wrappers_pb.ts
+++ b/packages/protobuf/src/wkt/gen/google/protobuf/wrappers_pb.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=.js,json_types=true"
+// @generated by protoc-gen-es v2.0.0-beta.2 with parameter "bootstrap_wkt=true,target=ts,import_extension=js,json_types=true"
 // @generated from file google/protobuf/wrappers.proto (package google.protobuf, syntax proto3)
 /* eslint-disable */
 
diff --git a/packages/protoc-gen-es/README.md b/packages/protoc-gen-es/README.md
index 7bf1d8b4e..ee4ae52e6 100644
--- a/packages/protoc-gen-es/README.md
+++ b/packages/protoc-gen-es/README.md
@@ -98,8 +98,8 @@ does not add a file extensions to import paths.
 Some environments require an import extension. For example, using [ECMAScript modules in Node.js](https://www.typescriptlang.org/docs/handbook/esm-node.html) requires the `.js` extension, and Deno requires `.ts`. With this plugin option, you can add `.js`/`.ts` extensions
 in import paths with the given value. For example, set
 
-- `import_extension=.js` to add the `.js` extension.
-- `import_extension=.ts` to add the `.ts` extension.
+- `import_extension=js` to add the `.js` extension.
+- `import_extension=ts` to add the `.ts` extension.
 - `import_extension=none` to not add an extension. (Default)
 
 ### `js_import_style`
diff --git a/packages/protoplugin-test/src/import_extension.test.ts b/packages/protoplugin-test/src/import_extension.test.ts
index 5819addb1..dcbe3ff10 100644
--- a/packages/protoplugin-test/src/import_extension.test.ts
+++ b/packages/protoplugin-test/src/import_extension.test.ts
@@ -28,52 +28,55 @@ describe("import_extension", function () {
       "Bar",
     ]);
   });
-  test("should be replaced with '.js'", async () => {
-    const lines = await testGenerate("target=ts,import_extension=.js", (f) => {
-      const Bar = f.import("Bar", "./foo/bar_pb.js");
-      f.print`${Bar}`;
-    });
-    expect(lines).toStrictEqual([
-      'import { Bar } from "./foo/bar_pb.js";',
-      "",
-      "Bar",
-    ]);
-  });
-  test("should be replaced with '.ts'", async () => {
-    const lines = await testGenerate("target=ts,import_extension=.ts", (f) => {
-      const Bar = f.import("Bar", "./foo/bar_pb.js");
-      f.print`${Bar}`;
-    });
-    expect(lines).toStrictEqual([
-      'import { Bar } from "./foo/bar_pb.ts";',
-      "",
-      "Bar",
-    ]);
-  });
-  test("should be removed with 'none'", async () => {
-    const lines = await testGenerate("target=ts,import_extension=none", (f) => {
-      const Bar = f.import("Bar", "./foo/bar_pb.js");
-      f.print`${Bar}`;
-    });
+  test.each([
+    { option: "js", ext: ".js" },
+    { option: ".js", ext: ".js" },
+    { option: "ts", ext: ".ts" },
+    { option: ".ts", ext: ".ts" },
+  ])("should be replaced with option '$option'", async ({ option, ext }) => {
+    const lines = await testGenerate(
+      `target=ts,import_extension=${option}`,
+      (f) => {
+        const Bar = f.import("Bar", "./foo/bar_pb.js");
+        f.print`${Bar}`;
+      },
+    );
     expect(lines).toStrictEqual([
-      'import { Bar } from "./foo/bar_pb";',
+      `import { Bar } from "./foo/bar_pb${ext}";`,
       "",
       "Bar",
     ]);
   });
-  test("should be removed with ''", async () => {
-    const lines = await testGenerate("target=ts,import_extension=", (f) => {
-      const Bar = f.import("Bar", "./foo/bar_pb.js");
-      f.print`${Bar}`;
-    });
-    expect(lines).toStrictEqual([
-      'import { Bar } from "./foo/bar_pb";',
-      "",
-      "Bar",
-    ]);
+  test.each([
+    { option: "none", ext: "" },
+    { option: "", ext: "" },
+  ])(
+    "should be removed with with option '$option'",
+    async ({ option, ext }) => {
+      const lines = await testGenerate(
+        `target=ts,import_extension=${option}`,
+        (f) => {
+          const Bar = f.import("Bar", "./foo/bar_pb.js");
+          f.print`${Bar}`;
+        },
+      );
+      expect(lines).toStrictEqual([
+        `import { Bar } from "./foo/bar_pb${ext}";`,
+        "",
+        "Bar",
+      ]);
+    },
+  );
+  test("throws error for unknown extension", async () => {
+    await expect(async () => {
+      await testGenerate("target=mjs", (f) => {
+        const Bar = f.import("Bar", "./foo/bar_pb.js");
+        f.print`${Bar}`;
+      });
+    }).rejects.toThrow(`invalid option "target=mjs"`);
   });
   test("should only touch .js import paths", async () => {
-    const lines = await testGenerate("target=ts,import_extension=.ts", (f) => {
+    const lines = await testGenerate("target=ts,import_extension=ts", (f) => {
       const json = f.import("json", "./foo/bar_pb.json");
       f.print`${json}`;
     });
diff --git a/packages/protoplugin/src/import-path.ts b/packages/protoplugin/src/import-path.ts
index 2804094c2..1bacef251 100644
--- a/packages/protoplugin/src/import-path.ts
+++ b/packages/protoplugin/src/import-path.ts
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+import type { ImportExtension } from "./parameter.js";
+
 /**
  * A configuration for rewriting import paths, a feature mainly used for
  * remote code generation in the BSR npm registry, which makes it possible
@@ -62,7 +64,7 @@ const cache = new WeakMap<
 export function rewriteImportPath(
   importPath: string,
   rewriteImports: RewriteImports,
-  importExtension: string,
+  importExtension: ImportExtension,
 ): string {
   let ri = cache.get(rewriteImports);
   if (ri === undefined) {
@@ -85,9 +87,14 @@ export function rewriteImportPath(
       break;
     }
   }
-  if (importExtension != ".js" && importPath.endsWith(".js")) {
-    importPath =
-      importPath.substring(0, importPath.length - 3) + importExtension;
+  if (importPath.endsWith(".js")) {
+    switch (importExtension) {
+      case "none":
+        return importPath.substring(0, importPath.length - 3);
+      case "ts":
+      case "js":
+        return importPath.substring(0, importPath.length - 2) + importExtension;
+    }
   }
   return importPath;
 }
diff --git a/packages/protoplugin/src/index.ts b/packages/protoplugin/src/index.ts
index beee1805c..8854ac848 100644
--- a/packages/protoplugin/src/index.ts
+++ b/packages/protoplugin/src/index.ts
@@ -22,9 +22,12 @@ export {
   getSyntaxComments,
 } from "./source-code-info.js";
 
-export type { Target } from "./target.js";
 export type { Schema } from "./schema.js";
-export type { EcmaScriptPluginOptions } from "./parameter.js";
+export type {
+  EcmaScriptPluginOptions,
+  Target,
+  ImportExtension,
+} from "./parameter.js";
 export type { GeneratedFile, FileInfo } from "./generated-file.js";
 export type { ImportSymbol } from "./import-symbol.js";
 export { createImportSymbol } from "./import-symbol.js";
diff --git a/packages/protoplugin/src/parameter.ts b/packages/protoplugin/src/parameter.ts
index a961b7d29..6401539a6 100644
--- a/packages/protoplugin/src/parameter.ts
+++ b/packages/protoplugin/src/parameter.ts
@@ -12,10 +12,19 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import type { Target } from "./target.js";
 import type { RewriteImports } from "./import-path.js";
 import { PluginOptionError } from "./error.js";
 
+/**
+ * Represents possible values of the plugin option `target`.
+ */
+export type Target = "js" | "ts" | "dts";
+
+/**
+ * Possible values of the plugin option `import_extension`.
+ */
+export type ImportExtension = "none" | "js" | "ts";
+
 /**
  * Standard plugin options that every ECMAScript plugin supports.
  */
@@ -28,11 +37,11 @@ export interface EcmaScriptPluginOptions {
    */
   targets: Target[];
   /**
-   * Add an extension to every import, for example ".js" or ".ts".
+   * Add an extension to every import: "js" or "ts".
    *
-   * The default is "".
+   * The default is "none".
    */
-  importExtension: string;
+  importExtension: ImportExtension;
   /**
    * Generate `import` statements or `require()` calls.
    *
@@ -99,7 +108,7 @@ export function parseParameter<T extends object>(
   let bootstrapWkt = false;
   let keepEmptyFiles = false;
   const rewriteImports: RewriteImports = [];
-  let importExtension = "";
+  let importExtension: ImportExtension = "none";
   let jsImportStyle: "module" | "legacy_commonjs" = "module";
   const extraParameters: RawPluginOptions = [];
   const extraParametersRaw: string[] = [];
@@ -170,7 +179,22 @@ export function parseParameter<T extends object>(
         break;
       }
       case "import_extension": {
-        importExtension = value === "none" ? "" : value;
+        switch (value) {
+          case "none":
+          case "":
+            importExtension = "none";
+            break;
+          case "js":
+          case ".js":
+            importExtension = "js";
+            break;
+          case "ts":
+          case ".ts":
+            importExtension = "ts";
+            break;
+          default:
+            throw new PluginOptionError(raw);
+        }
         break;
       }
       case "js_import_style":
diff --git a/packages/protoplugin/src/schema.ts b/packages/protoplugin/src/schema.ts
index 1833e3004..a84ea424d 100644
--- a/packages/protoplugin/src/schema.ts
+++ b/packages/protoplugin/src/schema.ts
@@ -34,9 +34,12 @@ import type {
 } from "./generated-file.js";
 import { createGeneratedFile } from "./generated-file.js";
 import { createImportSymbol } from "./import-symbol.js";
-import type { Target } from "./target.js";
 import { deriveImportPath, rewriteImportPath } from "./import-path.js";
-import type { EcmaScriptPluginOptions, ParsedParameter } from "./parameter.js";
+import type {
+  EcmaScriptPluginOptions,
+  ParsedParameter,
+  Target,
+} from "./parameter.js";
 import { makeFilePreamble } from "./file-preamble.js";
 import {
   generatedDescName,
diff --git a/packages/protoplugin/src/target.ts b/packages/protoplugin/src/target.ts
deleted file mode 100644
index adaf76527..000000000
--- a/packages/protoplugin/src/target.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2021-2024 Buf Technologies, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * Represents possible values of the plugin option `target`.
- */
-export type Target = "js" | "ts" | "dts";