diff --git a/lib/ace/lib/event.js b/lib/ace/lib/event.js
index a09f9359..9a9d4e46 100644
--- a/lib/ace/lib/event.js
+++ b/lib/ace/lib/event.js
@@ -174,20 +174,9 @@ else {
 }
 
 exports.addMouseWheelListener = function(el, callback) {
-    var max = 0;
+    var factor = 8;
     var listener = function(e) {
         if (e.wheelDelta !== undefined) {
-
-            // some versions of Safari (e.g. 5.0.5) report insanely high
-            // scroll values. These browsers require a higher factor
-            if (Math.abs(e.wheelDeltaY) > max)
-                max = Math.abs(e.wheelDeltaY);
-
-            if (max > 5000)
-                var factor = 400;
-            else
-                var factor = 8;
-
             if (e.wheelDeltaX !== undefined) {
                 e.wheelX = -e.wheelDeltaX / factor;
                 e.wheelY = -e.wheelDeltaY / factor;