diff --git a/docs/2.guide/2.directory-structure/1.shared.md b/docs/2.guide/2.directory-structure/1.shared.md
index 3c1701cc71..b98e501970 100644
--- a/docs/2.guide/2.directory-structure/1.shared.md
+++ b/docs/2.guide/2.directory-structure/1.shared.md
@@ -37,6 +37,8 @@ export default function capitalize (input: string) {
 
 If you have set `compatibilityVersion: 4` in your `nuxt.config.ts`, you can use the auto-imported functions in the `app/` directory. This is part of Nuxt's progressive compatibility features preparing for version 4.
 
+If you have [set `compatibilityVersion: 4` in your `nuxt.config.ts`](https://nuxt.com/docs/getting-started/upgrade#opting-in-to-nuxt-4), you can use the auto-imported functions in the `app/` directory. This is part of Nuxt's progressive compatibility features preparing for version 4.
+
 ```vue [app.vue]
 <script setup lang="ts">
 const hello = capitalize('hello')