diff --git a/lib/OpenLayers/Marker.js b/lib/OpenLayers/Marker.js
index dbb44a86da..7a681d3c9c 100644
--- a/lib/OpenLayers/Marker.js
+++ b/lib/OpenLayers/Marker.js
@@ -135,7 +135,8 @@ OpenLayers.Marker = OpenLayers.Class({
     * Move the marker to the new location.
     *
     * Parameters:
-    * px - {<OpenLayers.Pixel>} the pixel position to move to
+    * px - {<OpenLayers.Pixel>|Object} the pixel position to move to.
+    * An OpenLayers.Pixel or an object with a 'x' and 'y' properties.
     */
     moveTo: function (px) {
         if ((px != null) && (this.icon != null)) {