diff --git a/partner_contact_birthdate/models.py b/partner_contact_birthdate/models.py
index 3ec05477b..6342228b5 100644
--- a/partner_contact_birthdate/models.py
+++ b/partner_contact_birthdate/models.py
@@ -16,7 +16,7 @@
 # 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 import api, fields, models
+from openerp import _, api, fields, models
 import logging