diff --git a/docs/guide/theme-introduction.md b/docs/guide/theme-introduction.md
index f2ef177464d3..4e76c10e1871 100644
--- a/docs/guide/theme-introduction.md
+++ b/docs/guide/theme-introduction.md
@@ -182,6 +182,7 @@ Or you could use render function as well.
 
 ```js
 // .vitepress/theme/index.js
+import { h } from 'vue'
 import DefaultTheme from 'vitepress/theme'
 import MyComponent from './MyComponent.vue'