diff --git a/html5/verto/js/src/jquery.verto.js b/html5/verto/js/src/jquery.verto.js
index 8a477fbfaf..149efb6309 100644
--- a/html5/verto/js/src/jquery.verto.js
+++ b/html5/verto/js/src/jquery.verto.js
@@ -135,6 +135,7 @@
     };
 
     $.verto.prototype.loginData = function(params) {
+	var verto = this;
         verto.options.login = params.login;
         verto.options.passwd = params.passwd;
         verto.rpcClient.loginData(params);