diff --git a/lib/OpenLayers/Util.js b/lib/OpenLayers/Util.js
index e58a096869..c275564dce 100644
--- a/lib/OpenLayers/Util.js
+++ b/lib/OpenLayers/Util.js
@@ -321,7 +321,7 @@ OpenLayers.Util.createAlphaImageDiv = function(id, px, sz, imgURL,
     
     var div = OpenLayers.Util.createDiv();
     var img = OpenLayers.Util.createImage(null, null, null, null, null, null, 
-                                          false);
+                                          null, false);
     div.appendChild(img);
 
     if (delayDisplay) {