diff --git a/src/collections/menu.less b/src/collections/menu.less
index 8d3de8386..2b7682a17 100755
--- a/src/collections/menu.less
+++ b/src/collections/menu.less
@@ -190,7 +190,7 @@
     rgba(0, 0, 0, 0.05) 100%)
   ;
 }
-.ui.menu > .menu:first-child > .item:first-child:before,
+.ui.menu > .menu:not(.right):first-child > .item:first-child:before,
 .ui.menu .item:first-child:before {
   display: none;
 }