diff --git a/packages/nuxt/index.d.ts b/packages/nuxt/index.d.ts
index ba2935d80d..2256348248 100644
--- a/packages/nuxt/index.d.ts
+++ b/packages/nuxt/index.d.ts
@@ -19,10 +19,4 @@ declare global {
   }
 }
 
-declare module '#app/defaults' {
-  type DefaultAsyncDataErrorValue = undefined
-  type DefaultAsyncDataValue = undefined
-  type DefaultErrorValue = undefined
-}
-
 export {}
diff --git a/packages/nuxt/src/app/defaults.js b/packages/nuxt/src/app/defaults.js
deleted file mode 100644
index 8a0e47a141..0000000000
--- a/packages/nuxt/src/app/defaults.js
+++ /dev/null
@@ -1,2 +0,0 @@
-// TODO: temporary module for backwards compatibility
-export {}
diff --git a/packages/nuxt/src/app/defaults.ts b/packages/nuxt/src/app/defaults.ts
new file mode 100644
index 0000000000..c83129cca6
--- /dev/null
+++ b/packages/nuxt/src/app/defaults.ts
@@ -0,0 +1,7 @@
+// TODO: temporary module for backwards compatibility
+
+export type DefaultAsyncDataErrorValue = null
+export type DefaultAsyncDataValue = null
+export type DefaultErrorValue = null
+
+export {}