diff --git a/less/navs.less b/less/navs.less
index b4068f3361..19b43dfa0b 100644
--- a/less/navs.less
+++ b/less/navs.less
@@ -74,7 +74,7 @@
   margin-right: 2px;
   line-height: @line-height-base;
   border: 1px solid transparent;
-  border-radius: 4px 4px 0 0;
+  border-radius: @border-radius-base @border-radius-base 0 0;
   &:hover {
     border-color: @grayLighter @grayLighter #ddd;
   }