diff --git a/lib/OpenLayers/Map.js b/lib/OpenLayers/Map.js
index 0789c4687a..ef5a475e68 100644
--- a/lib/OpenLayers/Map.js
+++ b/lib/OpenLayers/Map.js
@@ -1849,7 +1849,7 @@ OpenLayers.Map = OpenLayers.Class({
             
             bounds = this.baseLayer.getExtent();
             
-            for (var i=0, len=this.layers.length; i<len; i++) {
+            for (var i=this.layers.length-1; i>=0; --i) {
                 var layer = this.layers[i];
                 if (layer !== this.baseLayer && !layer.isBaseLayer) {
                     var inRange = layer.calculateInRange();