diff --git a/lib/OpenLayers/Layer/Grid.js b/lib/OpenLayers/Layer/Grid.js
index 5bd1e3be96..ef8b41468f 100644
--- a/lib/OpenLayers/Layer/Grid.js
+++ b/lib/OpenLayers/Layer/Grid.js
@@ -418,10 +418,10 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
             newOptions.singleTile !== this.singleTile;
         OpenLayers.Layer.HTTPRequest.prototype.addOptions.apply(this, arguments);
         if (this.map && singleTileChanged) {
-                this.initProperties();
-                this.tileSize = this.options.tileSize;
-                this.setTileSize();
-                this.moveTo(null, true);
+            this.initProperties();
+            this.tileSize = this.options.tileSize;
+            this.setTileSize();
+            this.moveTo(null, true);
         }
     },