diff --git a/addons/mrp/mrp.py b/addons/mrp/mrp.py
index 7243d45bafc..b8ce7752402 100644
--- a/addons/mrp/mrp.py
+++ b/addons/mrp/mrp.py
@@ -1069,7 +1069,7 @@ class mrp_production_workcenter_line(osv.osv):
     _inherit = ['mail.thread']
 
     _columns = {
-        'name': fields.char('Work Order', size=64, required=True, states={'in_production':[('readonly',True)]}),
+        'name': fields.char('Work Order', size=64, required=True),
         'workcenter_id': fields.many2one('mrp.workcenter', 'Work Center', required=True),
         'cycle': fields.float('Number of Cycles', digits=(16,2)),
         'hour': fields.float('Number of Hours', digits=(16,2)),