diff --git a/lib/OpenLayers/Map.js b/lib/OpenLayers/Map.js
index 3e513cd697..23eca09e45 100644
--- a/lib/OpenLayers/Map.js
+++ b/lib/OpenLayers/Map.js
@@ -152,7 +152,11 @@ OpenLayers.Map.prototype = {
 
         this.layers = [];
         
-        if (!this.controls) {
+        if (this.controls) {
+            for(var i=0; i < this.controls.length; i++) {
+                this.addControl(this.controls[i]);
+            }
+        } else {
             this.controls = [];
             this.addControl(new OpenLayers.Control.MouseDefaults());
             this.addControl(new OpenLayers.Control.PanZoom());