diff --git a/rma_sale/wizards/rma_order_line_make_sale_order.py b/rma_sale/wizards/rma_order_line_make_sale_order.py
index f92c477e..bed93c63 100644
--- a/rma_sale/wizards/rma_order_line_make_sale_order.py
+++ b/rma_sale/wizards/rma_order_line_make_sale_order.py
@@ -108,10 +108,10 @@ class RmaLineMakeSaleOrder(models.TransientModel):
             vals["price_unit"] = 0.0
         return vals
 
-    def _post_process_sale_order(self, item, sale):
+    def _post_process_sale_order(self, item, sale_line):
         line = item.line_id
         if line.operation_id.auto_confirm_rma_sale:
-            sale.action_confirm()
+            sale_line.order_id.action_confirm()
 
     def make_sale_order(self):
         res = []
@@ -132,8 +132,8 @@ class RmaLineMakeSaleOrder(models.TransientModel):
                 sale.name = sale.name + " - " + line.name
 
             so_line_data = self._prepare_sale_order_line(sale, item)
-            sale = so_line_obj.create(so_line_data)
-            self._post_process_sale_order(item, sale)
+            sale_line = so_line_obj.create(so_line_data)
+            self._post_process_sale_order(item, sale_line)
             res.append(sale.id)
 
         action = self.env.ref("sale.action_orders")