diff --git a/lib/OpenLayers/Util.js b/lib/OpenLayers/Util.js
index f0e6725d45..348a497947 100644
--- a/lib/OpenLayers/Util.js
+++ b/lib/OpenLayers/Util.js
@@ -1636,7 +1636,8 @@ OpenLayers.Util.removeTail = function(url) {
  * {Boolean} True if the userAgent reports the browser to use the Gecko engine
  */
 OpenLayers.IS_GECKO = (function() {
-    return navigator.userAgent.toLowerCase().indexOf("gecko") != -1;
+    var ua = navigator.userAgent.toLowerCase();
+    return ua.indexOf("webkit") == -1 && ua.indexOf("gecko") != -1;
 })();
 
 /**