diff --git a/lib/OpenLayers/Marker.js b/lib/OpenLayers/Marker.js
index c370e828cc..3192096c59 100644
--- a/lib/OpenLayers/Marker.js
+++ b/lib/OpenLayers/Marker.js
@@ -126,7 +126,11 @@ OpenLayers.Marker.prototype = {
 OpenLayers.Marker.defaultIcon = function() {
     var url = OpenLayers.Util.getImagesLocation() + "marker.png";
     var size = new OpenLayers.Size(21, 25);
-    return new OpenLayers.Icon(url, size);        
+    var calculateOffset = function(size) {
+                    return new OpenLayers.Pixel(-(size.w/2), -size.h);
+                 };
+
+    return new OpenLayers.Icon(url, size, null, calculateOffset);        
 };