diff --git a/mail_base/README.rst b/mail_base/README.rst
index 9e936a2..6cd124a 100644
--- a/mail_base/README.rst
+++ b/mail_base/README.rst
@@ -25,4 +25,4 @@ Usage instructions: `<doc/index.rst>`_
 
 Changelog: `<doc/changelog.rst>`_
 
-Tested on Odoo 9.0 c8cd67c5d98b410cabe0a6efb3347a8a4de731d8
+Tested on Odoo 9.0 ed463864366029f8d4289db831fcdc196fc716cb
diff --git a/mail_base/controllers/main.py b/mail_base/controllers/main.py
index 8812df9..06f8695 100644
--- a/mail_base/controllers/main.py
+++ b/mail_base/controllers/main.py
@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
 from openerp.http import request
-import openerp
+from openerp.addons.bus.controllers.main import BusController
 
 
-class MailChatController(openerp.addons.bus.controllers.main.BusController):
+class MailChatController(BusController):
     # -----------------------------
     # Extends BUS Controller Poll
     # -----------------------------