diff --git a/lib/OpenLayers/Layer/XYZ.js b/lib/OpenLayers/Layer/XYZ.js
index 9ea185b071..1a833926fc 100644
--- a/lib/OpenLayers/Layer/XYZ.js
+++ b/lib/OpenLayers/Layer/XYZ.js
@@ -107,7 +107,6 @@ OpenLayers.Layer.XYZ = OpenLayers.Class(OpenLayers.Layer.Grid, {
         var y = Math.round((this.maxExtent.top - bounds.top) 
             / (res * this.tileSize.h));
         var z = this.map.getZoom();
-        var limit = Math.pow(2, z);
 
         var url = this.url;
         var s = '' + x + y + z;