diff --git a/src/runtime/types.ts b/src/runtime/types.ts
index 4afa0d5..7b9753f 100644
--- a/src/runtime/types.ts
+++ b/src/runtime/types.ts
@@ -1,6 +1,14 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 /* eslint-disable @typescript-eslint/ban-types */
 
+import type { ModuleOptions } from "../module"
+
+declare module 'nuxt/schema' {
+  interface PublicRuntimeConfig {
+    gtag: ModuleOptions
+  }
+}
+
 export interface GoogleTagOptions {
   /**
    * The Google tag ID to initialize.