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