diff --git a/packages/components/stepper/style/index.less b/packages/components/stepper/style/index.less
index fd35ba7e6..cfd33eb59 100644
--- a/packages/components/stepper/style/index.less
+++ b/packages/components/stepper/style/index.less
@@ -50,7 +50,6 @@
     &::after {
       display: inline-block;
       height: 100%;
-      border-radius: 1px;
       border-top: @stepper-line-border;
       border-right: @stepper-line-border;
       transition: border-color @transition-duration-base;