diff --git a/js/sideNav.js b/js/sideNav.js
index abc2821082..f6fe9ae08a 100644
--- a/js/sideNav.js
+++ b/js/sideNav.js
@@ -160,19 +160,14 @@
           $dragTarget.hammer({
             prevent_default: false
           }).bind('pan', function(e) {
-
-            if (e.gesture.pointerType == "touch") {
+            // Vertical scroll bugfix eventType Value === 8 is hammer.js bug
+            if (e.gesture.pointerType == "touch" && e.gesture.eventType !== 8) {
 
               var direction = e.gesture.direction;
               var x = e.gesture.center.x;
               var y = e.gesture.center.y;
               var velocityX = e.gesture.velocityX;
 
-              // Vertical scroll bugfix
-              if (x === 0 && y === 0) {
-                return;
-              }
-
               // Disable Scrolling
               var $body = $('body');
               var $overlay = $('#sidenav-overlay');