diff --git a/ext/custom-addons/dp_custom/models/sale.py b/ext/custom-addons/dp_custom/models/sale.py
index e2167a5a..a50f1f36 100644
--- a/ext/custom-addons/dp_custom/models/sale.py
+++ b/ext/custom-addons/dp_custom/models/sale.py
@@ -56,8 +56,8 @@ class SaleOrder(models.Model):
     @api.onchange('partner_invoice_id')
     def _onchange_partner_invoice_id(self):
         for record in self:
-            if record.partner_invoice_id.retail_partner_id:
-                record.payment_term_id = record.partner_invoice_id.retail_partner_id.property_payment_term_id
+            if record.partner_invoice_id.retailer:
+                record.payment_term_id = record.partner_invoice_id.property_payment_term_id
 
     @api.multi
     def _compute_weight_total(self):