diff --git a/models/acc_operation.py b/models/acc_operation.py
index b38984cb060b3f4fb96136f98584198d974b027c..e0defb5b1ceb0b5ab95b00c98493c326b0342000 100644
--- a/models/acc_operation.py
+++ b/models/acc_operation.py
@@ -342,7 +342,7 @@ class AccOperation(models.Model):
             {
                 "acc_operation_id": self.id,
                 "producer_id": producer_id.id,
-                "contact_invoice": self.pmo_id.id,
+                "contact_invoice": self.contact_invoice.id,
                 "acc_delivery_id": acc_delivery_id.id,
                 "power_cons": power_cons_tot,
                 "start_date": date_start,