diff --git a/odex25_purchase/purchase_requisition_custom/models/purchase_order.py b/odex25_purchase/purchase_requisition_custom/models/purchase_order.py
index 57b7af17f..8e0f5cc30 100644
--- a/odex25_purchase/purchase_requisition_custom/models/purchase_order.py
+++ b/odex25_purchase/purchase_requisition_custom/models/purchase_order.py
@@ -475,16 +475,16 @@ class PurchaseOrderCustom(models.Model):
                     lambda x:
                     x.crossovered_budget_id.state == 'done' and
                     fields.Date.from_string(x.date_from) <= fields.Date.from_string(
-                        self.date_order) <= fields.Date.from_string(x.date_to))
+                        order.date_order) <= fields.Date.from_string(x.date_to))
                 amount = budget_lines.purchase_remain
                 amount += line.price_subtotal
                 budget_lines.write({'purchase_remain': amount})
                 budget_lines.write({'reserve': abs(line.price_subtotal - budget_lines.reserve)})
 
             if order.requisition_id.id:
-                self.requisition_id.state = 'done'
+                order.requisition_id.state = 'done'
             if order.request_id:
-                self.request_id.write({'state': 'done'})
+                order.request_id.write({'state': 'done'})
         return True