diff --git a/src/popover/index.less b/src/popover/index.less
index a97e0ec6a..c718d41a6 100644
--- a/src/popover/index.less
+++ b/src/popover/index.less
@@ -1,5 +1,4 @@
 @import '../style/var';
-@import '../style/mixins/hairline';
 
 .van-popover {
   position: absolute;