diff --git a/docs/2.guide/3.going-further/10.runtime-config.md b/docs/2.guide/3.going-further/10.runtime-config.md
index d9c76dc972..268b5dd945 100644
--- a/docs/2.guide/3.going-further/10.runtime-config.md
+++ b/docs/2.guide/3.going-further/10.runtime-config.md
@@ -150,9 +150,9 @@ It is also possible to type your runtime config manually:
 declare module 'nuxt/schema' {
   interface RuntimeConfig {
     apiSecret: string
-    public: {
-      apiBase: string
-    }
+  }
+  interface PublicRuntimeConfig {
+    apiBase: string
   }
 }
 // It is always important to ensure you import/export something when augmenting a type
diff --git a/packages/nuxt/config.d.ts b/packages/nuxt/config.d.ts
index ddd2beade0..8eab74f3c6 100644
--- a/packages/nuxt/config.d.ts
+++ b/packages/nuxt/config.d.ts
@@ -2,4 +2,5 @@ import type { NuxtConfig } from 'nuxt/schema'
 import type { DefineConfig, InputConfig, UserInputConfig, ConfigLayerMeta } from 'c12'
 export { NuxtConfig } from 'nuxt/schema'
 
-export declare const defineNuxtConfig: DefineConfig<NuxtConfig, ConfigLayerMeta>
+export interface DefineNuxtConfig extends DefineConfig<NuxtConfig, ConfigLayerMeta> {}
+export declare const defineNuxtConfig: DefineNuxtConfig
diff --git a/packages/nuxt/types.d.ts b/packages/nuxt/types.d.ts
index 220045a6a6..d2dddd2211 100644
--- a/packages/nuxt/types.d.ts
+++ b/packages/nuxt/types.d.ts
@@ -1,12 +1,13 @@
 /// <reference types="nitropack" />
 export * from './dist/index'
 
+import type { DefineNuxtConfig } from 'nuxt/config'
 import type { SchemaDefinition, RuntimeConfig } from 'nuxt/schema'
 import type { H3Event } from 'h3'
 import type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from './dist/core/runtime/nitro/renderer'
 
 declare global {
-  const defineNuxtConfig: typeof import('nuxt/config')['defineNuxtConfig']
+  const defineNuxtConfig: DefineNuxtConfig
   const defineNuxtSchema: (schema: SchemaDefinition) => SchemaDefinition
 }