diff --git src/wp-admin/js/customize-nav-menus.js src/wp-admin/js/customize-nav-menus.js
index e315019..f5296b6 100644
--- src/wp-admin/js/customize-nav-menus.js
+++ src/wp-admin/js/customize-nav-menus.js
@@ -119,6 +119,10 @@
 		initialize: function() {
 			var self = this;
 
+			if ( ! api.panel.has( 'nav_menus' ) ) {
+				return;
+			}
+
 			this.$search = $( '#menu-items-search' );
 			this.sectionContent = this.$el.find( '.accordion-section-content' );