diff --git a/templates/menu_tree/menu_tree.js b/templates/menu_tree/menu_tree.js
index cb101ef8..c477537d 100644
--- a/templates/menu_tree/menu_tree.js
+++ b/templates/menu_tree/menu_tree.js
@@ -4,16 +4,20 @@
  */
 
 (function ($) {
-    Drupal.behaviors.ecEuropaMenuTree = {
-        attach: function (context) {
-            $('.ecl-navigation-menu__root').once('ecEuropaMenuTree', function() {
-                ECL.megamenu('.ecl-navigation-menu__root');
-            });
-        }
-    };
     Drupal.behaviors.megaMenu = {
         attach: function (context, settings) {
           ECL.megamenu();
+
+        // Fix burger menu.
+          $('.ecl-navigation-menu__hamburger').click(function() {
+              var button = $(this);
+              
+              if (button.attr('aria-expanded') == 'true') {
+                  button.attr('aria-expanded', 'false');
+              } else {
+                  button.attr('aria-expanded', 'true');
+              }
+          });
         }
     };
 })(jQuery);