diff --git a/models/res_partner.py b/models/res_partner.py
index 1221e806e8d8d75436e7285ef0f10a9be02f6d89..336c150a97f91e25be9bb80a2c6edccb1c459dfe 100644
--- a/models/res_partner.py
+++ b/models/res_partner.py
@@ -85,7 +85,7 @@ class ScopPartner(models.Model):
                                  ondelete='restrict',
                                  default=_default_country,
                                  track_visibility='onchange')
-    phone = fields.Char("Téléphone 1", size=10, track_visibility='onchange')
+    phone = fields.Char("Téléphone 1", track_visibility='onchange')
     mobile = fields.Char("Téléphone 2", track_visibility='onchange')
     email = fields.Char("eMail administratif", track_visibility='onchange')
     facebook = fields.Char("Facebook")