diff --git a/lib/user.js b/lib/user.js
index 48e80a2..427c912 100644
--- a/lib/user.js
+++ b/lib/user.js
@@ -46,8 +46,9 @@ exports.initialize = function (nowjs) {
 
      * @property {String} clientId The user's ID, as created by
      * Socket.IO.
-     * @property {String} cookie The user's cookie, as determined by
+     * @property {Object} cookie The user's cookie, as determined by
      * Socket.IO.
+     * @property {Object} session The user's session, as created by express/connect. Value is undefined if no session object exists in the http server.
      */
     this.user = {
       clientId: socket.id,