diff --git a/addons/delivery/models/sale_order.py b/addons/delivery/models/sale_order.py
index dd9459b38bfa739c728ffc1d1259c6d1906994fa..ad69ae0b3b3fcc83b8055599eb7b4cfb3acc7ff9 100644
--- a/addons/delivery/models/sale_order.py
+++ b/addons/delivery/models/sale_order.py
@@ -70,6 +70,8 @@ class SaleOrder(models.Model):
             else:
                 raise UserError(_('No carrier set for this order.'))
 
+        return True
+
     def _create_delivery_line(self, carrier, price_unit):
         SaleOrderLine = self.env['sale.order.line']