diff --git a/.gitignore b/.gitignore
index 8e3dd5b045..cc3c57be99 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,4 +20,5 @@ catalog/site/components/*.md
 catalog/site/components/images
 catalog/*.tsbuildinfo
 catalog/stories/*/
-!catalog/stories/components/
\ No newline at end of file
+!catalog/stories/components/
+!catalog/src/types/**/*.d.ts
\ No newline at end of file
diff --git a/catalog/package.json b/catalog/package.json
index b071418ed7..cb3cb030a0 100644
--- a/catalog/package.json
+++ b/catalog/package.json
@@ -22,7 +22,8 @@
     "build:dev": {
       "dependencies": [
         "build:dev:eleventy",
-        "build:dev:ts"
+        "build:dev:ts",
+        "build:type-check"
       ]
     },
     "build:dev:eleventy": {
@@ -66,12 +67,16 @@
       "clean": "if-file-deleted",
       "output": [
         "tsconfig.tsbuildinfo"
+      ],
+      "dependencies": [
+        "..:build"
       ]
     },
     "build:prod": {
       "dependencies": [
         "build:prod:eleventy",
-        "build:prod:ts"
+        "build:prod:ts",
+        "build:type-check"
       ]
     },
     "build:prod:eleventy": {
diff --git a/catalog/src/types/is-land.d.ts b/catalog/src/types/is-land.d.ts
new file mode 100644
index 0000000000..e84f473f85
--- /dev/null
+++ b/catalog/src/types/is-land.d.ts
@@ -0,0 +1,11 @@
+/**
+ * @license
+ * Copyright 2023 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+declare module '@11ty/is-land' {
+  export class Island extends HTMLElement {
+    forceFallback(): void;
+  }
+}
\ No newline at end of file
diff --git a/catalog/tsconfig.json b/catalog/tsconfig.json
index d62c0783e1..1ee8c16b41 100644
--- a/catalog/tsconfig.json
+++ b/catalog/tsconfig.json
@@ -12,7 +12,8 @@
     "useDefineForClassFields": false,
     "forceConsistentCasingInFileNames": true,
     "noEmit": true,
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "types": []
   },
   "include": ["src/**/*", "stories/*", "stories/components"],
   "exclude": []