diff --git a/lib/OpenLayers/Control/MouseToolbar.js b/lib/OpenLayers/Control/MouseToolbar.js
index a045b87110..25fbfef97e 100644
--- a/lib/OpenLayers/Control/MouseToolbar.js
+++ b/lib/OpenLayers/Control/MouseToolbar.js
@@ -46,7 +46,7 @@ OpenLayers.Control.MouseToolbar.prototype =
         OpenLayers.Control.MouseDefaults.prototype.draw.apply(this, arguments);
         this.buttons = new Object();
         var sz = new OpenLayers.Size(28,28);
-        var centered = this.position;
+        var centered = new OpenLayers.Pixel(OpenLayers.Control.MouseToolbar.X,0);
         this._addButton("zoombox", "drag-rectangle-off.png", "drag-rectangle-on.png", centered, sz, "Shift->Drag to zoom to area");
         centered = centered.add((this.direction == "vertical" ? 0 : sz.w), (this.direction == "vertical" ? sz.h : 0));
         this._addButton("pan", "panning-hand-off.png", "panning-hand-on.png", centered, sz, "Drag the map to pan.");