diff --git a/addons/point_of_sale/models/stock_picking.py b/addons/point_of_sale/models/stock_picking.py
index f5d2ecc0384..c64bf4d5f29 100644
--- a/addons/point_of_sale/models/stock_picking.py
+++ b/addons/point_of_sale/models/stock_picking.py
@@ -44,6 +44,7 @@ class StockPicking(models.Model):
             )
 
             positive_picking._create_move_from_pos_order_lines(positive_lines)
+            self.env.flush_all()
             try:
                 with self.env.cr.savepoint():
                     positive_picking._action_done()
@@ -63,6 +64,7 @@ class StockPicking(models.Model):
                 self._prepare_picking_vals(partner, return_picking_type, location_dest_id, return_location_id)
             )
             negative_picking._create_move_from_pos_order_lines(negative_lines)
+            self.env.flush_all()
             try:
                 with self.env.cr.savepoint():
                     negative_picking._action_done()