diff --git a/components/iconfont/index.md b/components/iconfont/index.md
index d07ff6c2304c7067c53a8182af1f293cec4dbc2f..b315331b55efd45efa67c42925fd2248e466098f 100644
--- a/components/iconfont/index.md
+++ b/components/iconfont/index.md
@@ -23,7 +23,7 @@
 
 所有的 Icon 标签最终会渲染为
 
-```
+```html
 <i class="anticon anticon-${type}"></i>
 ```