diff --git a/addons/dine360_uber/models/sale_order.py b/addons/dine360_uber/models/sale_order.py
index 362d09c..322e21f 100644
--- a/addons/dine360_uber/models/sale_order.py
+++ b/addons/dine360_uber/models/sale_order.py
@@ -68,6 +68,10 @@ class SaleOrder(models.Model):
             # Lock the price on the carrier record itself temporarily (SUDO) to satisfy Odoo's check_carrier
             carrier.sudo().write({'fixed_price': amount})
             
+            # Remove any existing delivery lines first to prevent accumulation
+            # We do this manually because our protection in online_orders blocks the automatic removal
+            self.order_line.filtered(lambda l: l.is_delivery).sudo().unlink()
+            
             # Apply to order
             self.sudo().set_delivery_line(carrier, amount)
             self.sudo().write({'carrier_id': carrier.id})