diff --git a/packages/schema/src/types/config.ts b/packages/schema/src/types/config.ts
index b1e96219e6..797361917f 100644
--- a/packages/schema/src/types/config.ts
+++ b/packages/schema/src/types/config.ts
@@ -158,4 +158,4 @@ export interface NuxtAppConfig {
   keepalive: boolean | KeepAliveProps
 }
 
-export interface AppConfig { }
+export interface AppConfig extends CustomAppConfig { }