diff --git a/openerp/addons/base/__openerp__.py b/openerp/addons/base/__openerp__.py
index 109d576bcd7..5b357263569 100644
--- a/openerp/addons/base/__openerp__.py
+++ b/openerp/addons/base/__openerp__.py
@@ -23,7 +23,7 @@
 
 {
     'name': 'Base',
-    'version': '1.4',
+    'version': '1.3',
     'category': 'Generic Modules/Base',
     'complexity': "easy",
     'description': """The kernel of OpenERP, needed for all installation.""",
diff --git a/openerp/addons/base/migrations/1.4/post-user-address.py b/openerp/addons/base/migrations/1.4/post-user-address.py
deleted file mode 100644
index bb6e2fa487e..00000000000
--- a/openerp/addons/base/migrations/1.4/post-user-address.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# -*- coding: utf-8 -*-
-##############################################################################
-#
-#    OpenERP, Open Source Management Solution
-#    Copyright (C) 2011 OpenERP s.a. (<http://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/>.
-#
-##############################################################################
-
-def migrate(cr, version):
-    "copy emails from user.address_id.email to user.user_email"
-    cr.execute("""
-        UPDATE res_users
-        SET user_email = res_partner_address.email
-        FROM res_partner_address
-        WHERE res_users.address_id = res_partner_address.id""")
-