diff --git a/src/wp-admin/js/nav-menu.js b/src/wp-admin/js/nav-menu.js
index de11878da5..5a685a3150 100644
--- a/src/wp-admin/js/nav-menu.js
+++ b/src/wp-admin/js/nav-menu.js
@@ -840,9 +840,9 @@ var wpNavMenu;
 			 * When a navigation menu is saved, store a JSON representation of all form data
 			 * in a single input to avoid PHP `max_input_vars` limitations. See #14134.
 			 */
-			$('#update-nav-menu').submit(function() {
-				var navMenuData = $('#update-nav-menu').serializeArray();
-				$('[name="nav-menu-data"]').val( JSON.stringify( navMenuData ) );
+			$( '#update-nav-menu' ).submit( function() {
+				var navMenuData = $( '#update-nav-menu' ).serializeArray();
+				$( '[name="nav-menu-data"]' ).val( JSON.stringify( navMenuData ) );
 			});
 		},