diff --git a/packages/tabbar/index.less b/packages/tabbar/index.less
index 33624a64e..53132bf39 100644
--- a/packages/tabbar/index.less
+++ b/packages/tabbar/index.less
@@ -3,6 +3,7 @@
 
 .van-tabbar {
   display: flex;
+  box-sizing: content-box;
   width: 100%;
   .theme(height, '@tabbar-height');
   .theme(background-color, '@tabbar-background-color');