diff --git a/lib/OpenLayers/Feature.js b/lib/OpenLayers/Feature.js
index d9043bb87b..6af36d01fe 100644
--- a/lib/OpenLayers/Feature.js
+++ b/lib/OpenLayers/Feature.js
@@ -36,11 +36,11 @@ OpenLayers.Feature.prototype= {
      * @param {OpenLayers.LonLat} lonlat
      * @param {Object} data
      */
-    initialize: function(layer, id, lonlat, data) {
+    initialize: function(layer, lonlat, data, id) {
         this.layer = layer;
-        this.id = id;
         this.lonlat = lonlat;
         this.data = data;
+        this.id = (id ? id : 'f'+Math.Random());
     },
 
     /**