diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index e3a825ee843..2e33ff3ec30 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -1740,7 +1740,7 @@ class stock_move(osv.osv):
         'date_expected': fields.datetime('Expected Date', states={'done': [('readonly', True)]}, required=True, select=True, help="Scheduled date for the processing of this move"),
         'product_id': fields.many2one('product.product', 'Product', required=True, select=True, domain=[('type', '<>', 'service')], states={'done': [('readonly', True)]}),
         'product_qty': fields.function(_quantity_normalize, fnct_inv=_set_product_qty, type='float', digits=0, store={
-            _name: (lambda self, cr, uid, ids, c={}: ids, ['product_id', 'product_uom', 'product_uom_qty'], 40),
+            _name: (lambda self, cr, uid, ids, c={}: ids, ['product_id', 'product_uom', 'product_uom_qty'], 10),
         }, string='Quantity',
             help='Quantity in the default UoM of the product'),
         'product_uom_qty': fields.float('Quantity', digits_compute=dp.get_precision('Product Unit of Measure'),