diff --git a/lib/OpenLayers/Layer/WMS/Untiled.js b/lib/OpenLayers/Layer/WMS/Untiled.js
index e2e6c9b8d7..a3a8f379bc 100644
--- a/lib/OpenLayers/Layer/WMS/Untiled.js
+++ b/lib/OpenLayers/Layer/WMS/Untiled.js
@@ -109,7 +109,7 @@ OpenLayers.Layer.WMS.Untiled.prototype =
     moveTo:function(bounds, zoomChanged, dragging) {
         OpenLayers.Layer.HTTPRequest.prototype.moveTo.apply(this,arguments);
         
-        if (!bounds == null) {
+        if (bounds == null) {
             bounds = this.map.getExtent();
         }