diff --git a/components/tooltip/style/index.less b/components/tooltip/style/index.less
index b24c2f767..189ca698c 100644
--- a/components/tooltip/style/index.less
+++ b/components/tooltip/style/index.less
@@ -65,7 +65,7 @@
     text-decoration: none;
     word-wrap: break-word;
     background-color: @tooltip-bg;
-    border-radius: @border-radius-base;
+    border-radius: @tooltip-border-radius;
     box-shadow: @box-shadow-base;
   }