diff --git a/framework/core/less/lib/Modal.less b/framework/core/less/lib/Modal.less
index 5e2d9e8de..1a00db270 100755
--- a/framework/core/less/lib/Modal.less
+++ b/framework/core/less/lib/Modal.less
@@ -151,7 +151,7 @@
     }
     &:before {
       content: " ";
-      // .App-header();
+      .header-background();
     }
   }
   .Modal {