diff --git a/components/skeleton-paragraph/index.wxml b/components/skeleton-paragraph/index.wxml
index 227c273..f717687 100644
--- a/components/skeleton-paragraph/index.wxml
+++ b/components/skeleton-paragraph/index.wxml
@@ -1,5 +1,5 @@
 <view class="wux-class {{ classes.wrap }}">
-    <block wx:for="{{ rowList }}" wx:key="">
+    <block wx:for="{{ rowList }}" wx:key="index">
         <view class="{{ classes.row }}"></view>
     </block>
 </view>