diff --git a/partner_identification/models/res_partner_id_number.py b/partner_identification/models/res_partner_id_number.py
index b3d74e3b8..c5c3d7fe3 100644
--- a/partner_identification/models/res_partner_id_number.py
+++ b/partner_identification/models/res_partner_id_number.py
@@ -17,7 +17,8 @@ class ResPartnerIdNumber(models.Model):
 
     @api.constrains("name", "category_id")
     def validate_id_number(self):
-        self.category_id.validate_id_number(self)
+        for record in self:
+            record.category_id.validate_id_number(record)
 
     name = fields.Char(
         string="ID Number",