diff --git a/lib/OpenLayers/Layer/Google.js b/lib/OpenLayers/Layer/Google.js
index 06e8e40a49..04596b86b3 100644
--- a/lib/OpenLayers/Layer/Google.js
+++ b/lib/OpenLayers/Layer/Google.js
@@ -264,7 +264,8 @@ OpenLayers.Layer.Google = OpenLayers.Class(
      * {GPoint} A GPoint specifying gLatLng translated into "Container" coords
      */
     addContainerPxFunction: function() {
-        if (typeof GMap2 != "undefined" && !GMap2.fromLatLngToContainerPixel) {
+        if ( (typeof GMap2 != "undefined") && 
+             !GMap2.prototype.fromLatLngToContainerPixel) {
           
             GMap2.prototype.fromLatLngToContainerPixel = function(gLatLng) {