diff --git a/easy_my_coop/models/operation_request.py b/easy_my_coop/models/operation_request.py
index 56fb3fb..df86f00 100644
--- a/easy_my_coop/models/operation_request.py
+++ b/easy_my_coop/models/operation_request.py
@@ -285,7 +285,9 @@ class operation_request(models.Model):
                 partner = self.subscription_request.create_coop_partner()
                 # get cooperator number
                 sub_reg_num = int(sequence_id.next_by_id())
-                partner_vals = sub_request.get_eater_vals(partner, self.share_product_id)
+                partner_vals.update(sub_request.get_eater_vals(
+                                    partner,
+                                    self.share_product_id))
                 partner_vals['cooperator_register_number'] = sub_reg_num
                 partner.write(partner_vals)
                 self.partner_id_to = partner
@@ -295,9 +297,9 @@ class operation_request(models.Model):
                     if self.partner_id_to.cooperator_register_number == 0:
                         sub_reg_num = int(sequence_id.next_by_id())
                         partner_vals['cooperator_register_number'] = sub_reg_num
-                    partner_vals = sub_request.get_eater_vals(
+                    partner_vals.replace(sub_request.get_eater_vals(
                                         self.partner_id_to,
-                                        self.share_product_id)
+                                        self.share_product_id))
                     partner_vals['old_member'] = False
                     self.partner_id_to.write(partner_vals)
             # remove the parts to the giver