diff --git a/addons/stock/models/stock_picking.py b/addons/stock/models/stock_picking.py
index 9f84b009cce..1157559ead6 100644
--- a/addons/stock/models/stock_picking.py
+++ b/addons/stock/models/stock_picking.py
@@ -640,7 +640,7 @@ class Picking(models.Model):
                                 move_ids_without_package |= move
                         else:
                             move_ids_without_package |= move
-            self.move_ids_without_package = move_ids_without_package
+            picking.move_ids_without_package = move_ids_without_package
 
     def _set_move_without_package(self):
         self.move_lines |= self.move_ids_without_package