diff --git a/packages/yforms/src/YForm/index.less b/packages/yforms/src/YForm/index.less
index 7f2d1bd..016e239 100644
--- a/packages/yforms/src/YForm/index.less
+++ b/packages/yforms/src/YForm/index.less
@@ -1,4 +1,4 @@
-@import '~antd/lib/style/themes/default.less';
+@ant-prefix: 'ant';
 
 .yforms {
   .one-line {