diff --git a/src/wp-admin/css/customize-nav-menus.css b/src/wp-admin/css/customize-nav-menus.css
index 02c029005b..a08815c550 100644
--- a/src/wp-admin/css/customize-nav-menus.css
+++ b/src/wp-admin/css/customize-nav-menus.css
@@ -65,6 +65,7 @@
 
 .wp-customizer .menu-item-bar .menu-item-handle {
 	width: 100%;
+	max-width: 100%;
 	background: #fff;
 }