diff --git a/addons/mrp/models/mrp_production.py b/addons/mrp/models/mrp_production.py
index 968759cd2d5..f77e2c155f4 100644
--- a/addons/mrp/models/mrp_production.py
+++ b/addons/mrp/models/mrp_production.py
@@ -499,11 +499,14 @@ class MrpProduction(models.Model):
     @api.multi
     def post_inventory(self):
         for order in self:
+            moves_not_to_do = order.move_raw_ids.filtered(lambda x: x.state == 'done')
             moves_to_do = order.move_raw_ids.filtered(lambda x: x.state not in ('done', 'cancel'))
             moves_to_do.action_done()
+            moves_to_do = order.move_raw_ids.filtered(lambda x: x.state == 'done') - moves_not_to_do
             order._cal_price(moves_to_do)
             moves_to_finish = order.move_finished_ids.filtered(lambda x: x.state not in ('done','cancel'))
             moves_to_finish.action_done()
+            
             for move in moves_to_finish:
                 #Group quants by lots
                 lot_quants = {}