diff --git a/lib/OpenLayers/Layer/FixedZoomLevels.js b/lib/OpenLayers/Layer/FixedZoomLevels.js
index 90aef182ea..6867852393 100644
--- a/lib/OpenLayers/Layer/FixedZoomLevels.js
+++ b/lib/OpenLayers/Layer/FixedZoomLevels.js
@@ -183,9 +183,7 @@ OpenLayers.Layer.FixedZoomLevels = OpenLayers.Class({
         if (this.resolutions != null) {
             return OpenLayers.Layer.prototype.getZoomForResolution.apply(this, arguments);
         } else {
-            var extent = OpenLayers.Layer.prototype.getExtent.apply(this, 
-                                                                    [resolution]);
-                                                                    
+            var extent = OpenLayers.Layer.prototype.getExtent.apply(this, []);
             return this.getZoomForExtent(extent);
         }
     },