diff --git a/addons/website_mail/mail_thread.py b/addons/website_mail/mail_thread.py
new file mode 100644
index 00000000000..c88fd032271
--- /dev/null
+++ b/addons/website_mail/mail_thread.py
@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2013-Today OpenERP SA (<http://www.openerp.com>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from openerp.osv import osv, fields
+
+
+class MailThread(osv.Model):
+    _inherit = 'mail.thread'
+
+    _columns = {
+        'website_message_ids': fields.one2many(
+            'mail.message', 'res_id',
+            domain=lambda self: [
+                '&', ('model', '=', self._name), ('type', '=', 'comment')
+            ],
+            string='Website Messages',
+            help="Website communication history",
+        ),
+    }