diff --git a/delivery_fedex_hibou/models/delivery_fedex.py b/delivery_fedex_hibou/models/delivery_fedex.py
index 75cbe23c..56dbe496 100644
--- a/delivery_fedex_hibou/models/delivery_fedex.py
+++ b/delivery_fedex_hibou/models/delivery_fedex.py
@@ -231,7 +231,7 @@ class DeliveryFedex(models.Model):
             recipient = superself.get_recipient(picking=picking)
             acc_number = superself._get_fedex_account_number(picking=picking)
             meter_number = superself._get_fedex_meter_number(picking=picking)
-            payment_acc_number = superself._get_fedex_payment_account_number()
+            payment_acc_number = superself._get_fedex_payment_account_number(picking=picking)
             order_name = superself.get_order_name(picking=picking)
             attn = superself.get_attn(picking=picking)
             insurance_value = superself.get_insurance_value(picking=picking)