diff --git a/src/wp-admin/css/admin-menu.css b/src/wp-admin/css/admin-menu.css
index 6656822f27..9333aff0cc 100644
--- a/src/wp-admin/css/admin-menu.css
+++ b/src/wp-admin/css/admin-menu.css
@@ -10,6 +10,7 @@
 	position: fixed;
 	top: 0;
 	bottom: -120px;
+	z-index: 9980; /* just beneath #adminmenuwrap */
 }
 
 #adminmenu {