diff --git a/addons/procurement/schedulers.py b/addons/procurement/schedulers.py
index 88dbafc3c62..94fad9f68b0 100644
--- a/addons/procurement/schedulers.py
+++ b/addons/procurement/schedulers.py
@@ -25,6 +25,7 @@ from mx import DateTime
 from osv import osv
 import netsvc
 import pooler
+from tools.translate import _
 
 class procurement_order(osv.osv):
     _inherit = 'procurement.order'