diff --git a/packages/bridge/src/runtime/app.ts b/packages/bridge/src/runtime/app.ts
index 4d98e77777f..d3352c4146e 100644
--- a/packages/bridge/src/runtime/app.ts
+++ b/packages/bridge/src/runtime/app.ts
@@ -4,6 +4,9 @@ import type { Vue } from 'vue/types/vue'
 import type { ComponentOptions } from 'vue'
 import { defineComponent, getCurrentInstance } from './composables'
 
+export const isVue2 = true
+export const isVue3 = false
+
 export const defineNuxtComponent = defineComponent
 
 export interface RuntimeNuxtHooks { }
diff --git a/packages/nuxt3/src/app/index.ts b/packages/nuxt3/src/app/index.ts
index c4b91a3b545..1a9d8ae0d16 100644
--- a/packages/nuxt3/src/app/index.ts
+++ b/packages/nuxt3/src/app/index.ts
@@ -1,2 +1,5 @@
 export * from './nuxt'
 export * from './composables'
+
+export const isVue2 = false
+export const isVue3 = true