diff --git a/components/collapse/style/index.less b/components/collapse/style/index.less
index 47d016cc2dcd..066403e04ccd 100644
--- a/components/collapse/style/index.less
+++ b/components/collapse/style/index.less
@@ -70,7 +70,7 @@
 
         .@{collapse-prefix-cls}-arrow {
           right: @padding-md;
-          left: initial;
+          left: auto;
         }
       }
     }