diff --git a/lib/OpenLayers/Layer/WFS.js b/lib/OpenLayers/Layer/WFS.js
index 142cd6c8b2..4b707ade52 100644
--- a/lib/OpenLayers/Layer/WFS.js
+++ b/lib/OpenLayers/Layer/WFS.js
@@ -110,7 +110,7 @@ OpenLayers.Layer.WFS.prototype =
     * @type OpenLayers.Tile.WFS
     */
     addTile:function(bounds, position) {
-        url = this.getFullRequestString(
+        var url = this.getFullRequestString(
                      { BBOX:bounds.toBBOX() });
 
         return new OpenLayers.Tile.WFS(this, position, bounds,