diff --git a/models/res_partner.py b/models/res_partner.py
index 082da8f414637bfe38895fd221d7a253af5118ab..e69fe5ef55a2f3e2e20bde54f2510dfbc52cf2e1 100644
--- a/models/res_partner.py
+++ b/models/res_partner.py
@@ -56,7 +56,7 @@ class ResPartner(models.Model):
             ('active', '=', True), 
             ('is_company', '=', True),
             ('type_structure_id.name', '=', 'ComCom')],
-        on_delete='restrict')
+        ondelete='restrict')
     departement_ids = fields.Many2many(
         comodel_name='res.partner',
         relation='res_partner_departement_rel',