diff --git a/bahmni_sale/models/sale_order_line.py b/bahmni_sale/models/sale_order_line.py
index 8a54180..2eafa70 100644
--- a/bahmni_sale/models/sale_order_line.py
+++ b/bahmni_sale/models/sale_order_line.py
@@ -40,14 +40,8 @@ def onchange_product_uom_qty(self):
     @api.onchange('lot_id')
     def onchange_lot_id(self):
         if self.lot_id:
-            self.expiry_date = self.lot_id.expiration_date 
-            res_config = self.env['res.config.settings'].search([],order='id desc',limit=1)
-            
-            print("res_config",res_config.id)
-            print("res_config",res_config.sale_price_markup)
-               
-            
-            if res_config.sale_price_markup == True:
+            self.expiry_date = self.lot_id.expiration_date             
+            if if bool(self.env['ir.config_parameter'].sudo().get_param('bahmni_sale.sale_price_markup')) == True:
                 self.price_unit = self.lot_id.sale_price if self.lot_id.sale_price > 0.0 else self.product_id.lst_price 
             else:
                 self.price_unit = self.product_id.lst_price