diff --git a/components/button/style/mixin.less b/components/button/style/mixin.less
index 832ca185a8..1ab82acb87 100644
--- a/components/button/style/mixin.less
+++ b/components/button/style/mixin.less
@@ -110,7 +110,7 @@
 }
 .button-group-base(@btnClassName) {
   position: relative;
-  display: inline-block;
+  display: inline-flex;
   > .@{btnClassName},
   > span > .@{btnClassName} {
     position: relative;