diff --git a/site/static/layouts/tucked-menu-vertical/index.html b/site/static/layouts/tucked-menu-vertical/index.html
index 68d0097..0a376f6 100644
--- a/site/static/layouts/tucked-menu-vertical/index.html
+++ b/site/static/layouts/tucked-menu-vertical/index.html
@@ -289,7 +289,7 @@ window.addEventListener(WINDOW_CHANGE_EVENT, closeMenu);
       <script>
       (function (window, document) {
       var menu = document.getElementById('menu'),
-          rollback,
+          rollBack,
           WINDOW_CHANGE_EVENT = ('onorientationchange' in window) ? 'orientationchange':'resize';
 
       function toggleHorizontal() {