diff --git a/lib/OpenLayers/Layer/Grid.js b/lib/OpenLayers/Layer/Grid.js
index d062fb7e34..b21f1650b7 100644
--- a/lib/OpenLayers/Layer/Grid.js
+++ b/lib/OpenLayers/Layer/Grid.js
@@ -695,8 +695,8 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
 
     /**
      * Method: onMapResize
-     * For singleTile layers, this will replace the tile with the
-     * a new one with updated tileSize and extent.
+     * For singleTile layers, this will set a new tile size according to the
+     * dimensions of the map pane.
      */
     onMapResize: function() {
         if (this.singleTile) {