diff --git a/webpack/attachments.js b/webpack/attachments.js
index f8c94da9c..2f15597bc 100644
--- a/webpack/attachments.js
+++ b/webpack/attachments.js
@@ -135,6 +135,7 @@ const bundleWithoutNormalize = [].concat(
         "src/less/base/**/*.less",
         "src/less/widget/**/*.less",
         "public/less/**/*.less",
+        "!public/less/app.less",
         // ts的less
     ]),
 );