diff --git a/partner_contact_birthdate/__init__.py b/partner_contact_birthdate/__init__.py
index 3b3430c28..1b4d792c6 100644
--- a/partner_contact_birthdate/__init__.py
+++ b/partner_contact_birthdate/__init__.py
@@ -17,3 +17,4 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from . import models
+from .hooks import post_init_hook
diff --git a/partner_contact_birthdate/__openerp__.py b/partner_contact_birthdate/__openerp__.py
index d7758ddb2..b7fe767ce 100644
--- a/partner_contact_birthdate/__openerp__.py
+++ b/partner_contact_birthdate/__openerp__.py
@@ -28,4 +28,5 @@
     "data": [
         "views/res_partner.xml",
     ],
+    "post_init_hook": "post_init_hook",
 }
diff --git a/partner_contact_birthdate/data/res_partner.yml b/partner_contact_birthdate/data/res_partner.yml
deleted file mode 100644
index 2b3d5efe9..000000000
--- a/partner_contact_birthdate/data/res_partner.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Odoo, Open Source Management Solution
-# Copyright (C) 2014-2015  Grupo ESOC <www.grupoesoc.es>
-#
-# 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/>.
-
-- !function {model: res.partner, name: _birthdate_install}
diff --git a/partner_contact_birthdate/hooks.py b/partner_contact_birthdate/hooks.py
new file mode 100644
index 000000000..f07477246
--- /dev/null
+++ b/partner_contact_birthdate/hooks.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+
+from openerp import SUPERUSER_ID
+from openerp.api import Environment
+
+
+def post_init_hook(cr, pool):
+    env = Environment(cr, SUPERUSER_ID, {})
+    env['res.partner'].search(
+        [('birthdate', "!=", False)])._birthdate_inverse()
diff --git a/partner_contact_birthdate/models.py b/partner_contact_birthdate/models.py
index 2686fed6d..880674ec1 100644
--- a/partner_contact_birthdate/models.py
+++ b/partner_contact_birthdate/models.py
@@ -51,8 +51,3 @@ class Partner(models.Model):
             _logger.warn(
                 _("Could not convert '{0.birthdate}' to date in "
                   "res.partner {0.id} ({0.name}). Skipping.").format(self))
-
-    @api.model
-    def _birthdate_install(self):
-        """Export all old birthdates to the new format."""
-        self.search([('birthdate', "!=", False)])._inverse_birthdate()