diff --git a/lib/OpenLayers/Icon.js b/lib/OpenLayers/Icon.js
index 406365a070..b8c4bf605a 100644
--- a/lib/OpenLayers/Icon.js
+++ b/lib/OpenLayers/Icon.js
@@ -25,7 +25,8 @@ OpenLayers.Icon.prototype = {
     initialize: function(url, size, offset) {
         this.size = size;
         this.url = url;
-        this.offset = (offset) ? offset : new OpenLayers.Pixel(0, 0);
+        this.offset = (offset) ? offset : 
+                      new OpenLayers.Pixel(-(size.w/2), -size.h);
     },
 
     /**