diff --git a/packages/theme-chalk/src/common/var.scss b/packages/theme-chalk/src/common/var.scss
index e26059bb9a..d5c4a1b90b 100644
--- a/packages/theme-chalk/src/common/var.scss
+++ b/packages/theme-chalk/src/common/var.scss
@@ -791,7 +791,7 @@ $dialog: map.merge(
     'content-font-size': 14px,
     'font-line-height': getCssVar('font-line-height-primary'),
     'padding-primary': 16px,
-    'border-radius': getCssVar('border-radius-small'),
+    'border-radius': getCssVar('border-radius-base'),
   ),
   $dialog
 );