diff --git a/lib/OpenLayers/Layer/GeoRSS.js b/lib/OpenLayers/Layer/GeoRSS.js
index d76f4ea75b..9de4b37268 100644
--- a/lib/OpenLayers/Layer/GeoRSS.js
+++ b/lib/OpenLayers/Layer/GeoRSS.js
@@ -45,7 +45,7 @@ OpenLayers.Layer.GeoRSS.prototype =
     },
         
     /**
-     * @param {?} ajaxRequest
+     * @param {XMLHttpRequest} ajaxRequest
      */
     parseData: function(ajaxRequest) {
         var doc = ajaxRequest.responseXML;
diff --git a/lib/OpenLayers/Tile/WFS.js b/lib/OpenLayers/Tile/WFS.js
index 889873b089..b95857a184 100644
--- a/lib/OpenLayers/Tile/WFS.js
+++ b/lib/OpenLayers/Tile/WFS.js
@@ -90,7 +90,7 @@ OpenLayers.Tile.WFS.prototype =
     
     /** Return from AJAX request
     *
-    * @param {} request
+    * @param {XMLHttpRequest} request
     */
     requestSuccess:function(request) {
         var doc = request.responseXML;