diff --git a/main.go b/main.go
index 2e85db545a..37757133e2 100644
--- a/main.go
+++ b/main.go
@@ -1,16 +1,18 @@
-// Copyright 2018 Google LLC All Rights Reserved.
-//
-// 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.
+/*
+Copyright 2020 Google LLC All Rights Reserved.
+
+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.
+*/
 
 package main
 
diff --git a/pkg/build/gobuild_test.go b/pkg/build/gobuild_test.go
index fd04bd455d..5c5a0131ca 100644
--- a/pkg/build/gobuild_test.go
+++ b/pkg/build/gobuild_test.go
@@ -92,8 +92,8 @@ func TestGoBuildIsSupportedRefWithModules(t *testing.T) {
 		withModuleInfo(mods),
 		withBuildContext(stubBuildContext{
 			// make all referenced deps commands
-			"github.com/google/ko/test": &gb.Package{Name: "main"},
-			"github.com/some/module/cmd":       &gb.Package{Name: "main"},
+			"github.com/google/ko/test":  &gb.Package{Name: "main"},
+			"github.com/some/module/cmd": &gb.Package{Name: "main"},
 
 			"github.com/google/ko/pkg/build": &gb.Package{Name: "build"},
 		}),
@@ -106,8 +106,8 @@ func TestGoBuildIsSupportedRefWithModules(t *testing.T) {
 
 	// Supported import paths.
 	for _, importpath := range []string{
-		"ko://github.com/google/ko/test", // ko can build the test package.
-		"ko://github.com/some/module/cmd",       // ko can build commands in dependent modules
+		"ko://github.com/google/ko/test",  // ko can build the test package.
+		"ko://github.com/some/module/cmd", // ko can build commands in dependent modules
 	} {
 		t.Run(importpath, func(t *testing.T) {
 			if err := ng.IsSupportedReference(importpath); err != nil {
@@ -120,7 +120,7 @@ func TestGoBuildIsSupportedRefWithModules(t *testing.T) {
 	for _, importpath := range []string{
 		"ko://github.com/google/ko/pkg/build",       // not a command.
 		"ko://github.com/google/ko/pkg/nonexistent", // does not exist.
-		"ko://github.com/google/ko",          // not in this module.
+		"ko://github.com/google/ko",                 // not in this module.
 	} {
 		t.Run(importpath, func(t *testing.T) {
 			if err := ng.IsSupportedReference(importpath); err == nil {