diff --git a/addons/stock/models/stock_move_line.py b/addons/stock/models/stock_move_line.py
index 3aefd3c837d..77d271abd9f 100644
--- a/addons/stock/models/stock_move_line.py
+++ b/addons/stock/models/stock_move_line.py
@@ -17,7 +17,7 @@ class StockMoveLine(models.Model):
     _order = "result_package_id desc, id"
 
     picking_id = fields.Many2one(
-        'stock.picking', 'Stock Picking',
+        'stock.picking', 'Stock Picking', auto_join=True,
         help='The stock operation where the packing has been made')
     move_id = fields.Many2one(
         'stock.move', 'Stock Move',