diff --git a/packages/sidebar/index.wxml b/packages/sidebar/index.wxml
index e64c19c2..96b11c71 100644
--- a/packages/sidebar/index.wxml
+++ b/packages/sidebar/index.wxml
@@ -1,3 +1,3 @@
-<view class="van-sidebar van-hairline--top-bottom custom-class">
+<view class="van-sidebar custom-class">
   <slot />
 </view>