diff --git a/packages/docs/docs/zh/guide/markdown.md b/packages/docs/docs/zh/guide/markdown.md
index a5be2e1c38..8fb26c36d0 100644
--- a/packages/docs/docs/zh/guide/markdown.md
+++ b/packages/docs/docs/zh/guide/markdown.md
@@ -165,7 +165,7 @@ Danger zone, do not proceed
 **Input**
 
 ````
-``` js{4}
+``` js {4}
 export default {
   data () {
     return {