diff --git a/core/misc/vertical-tabs.js b/core/misc/vertical-tabs.js
index eaf73db..e8277b0 100644
--- a/core/misc/vertical-tabs.js
+++ b/core/misc/vertical-tabs.js
@@ -1,3 +1,5 @@
+if (DETECT_THE_JS_FEATURES_NEEDED_BY_VERTICAL_TABS) {
+
 (function ($) {
 
 "use strict";
@@ -197,3 +199,5 @@ Drupal.theme.verticalTab = function (settings) {
 };
 
 })(jQuery);
+
+}