diff --git a/addons/sale_stock/stock.py b/addons/sale_stock/stock.py
index 27e7fa8c29b..e1070998ae8 100644
--- a/addons/sale_stock/stock.py
+++ b/addons/sale_stock/stock.py
@@ -20,6 +20,7 @@
 ##############################################################################
 
 from openerp.osv import fields, osv
+from openerp.tools.translate import _
 
 class stock_move(osv.osv):
     _inherit = 'stock.move'