diff --git a/packages/vant-css/src/button.css b/packages/vant-css/src/button.css
index 2cf0fce0a..7a3356dd1 100644
--- a/packages/vant-css/src/button.css
+++ b/packages/vant-css/src/button.css
@@ -24,7 +24,7 @@
     border-radius: inherit; /* inherit parent's border radius */
   }
 
-  &:not(.is-disabled):active::before {
+  &:not([disabled]):active::before {
     opacity: .3;
   }