diff --git a/lib/OpenLayers/Tile/WFS.js b/lib/OpenLayers/Tile/WFS.js
index 05110d239c..e4b7040f71 100644
--- a/lib/OpenLayers/Tile/WFS.js
+++ b/lib/OpenLayers/Tile/WFS.js
@@ -80,7 +80,7 @@ OpenLayers.Tile.WFS.prototype =
         
             for(var i=0; i < this.urls.length; i++) {
                 var params = { BBOX:this.bounds.toBBOX() };
-                var url = this.urls[i] + 
+                var url = this.urls[i] + "&" + 
                           OpenLayers.Util.getParameterString(params);
                 OpenLayers.loadURL(url, null, this, success, failure);
             }