diff --git a/addons/mrp_repair/mrp_repair.py b/addons/mrp_repair/mrp_repair.py
index 7f6e6caa906..28751df910e 100644
--- a/addons/mrp_repair/mrp_repair.py
+++ b/addons/mrp_repair/mrp_repair.py
@@ -140,7 +140,7 @@ class mrp_repair(osv.osv):
         'location_id': fields.many2one('stock.location', 'Current Location', select=True, required=True, readonly=True, states={'draft': [('readonly', False)], 'confirmed': [('readonly', True)]}),
         'location_dest_id': fields.many2one('stock.location', 'Delivery Location', readonly=True, required=True, states={'draft': [('readonly', False)], 'confirmed': [('readonly', True)]}),
         'lot_id': fields.many2one('stock.production.lot', 'Repaired Lot', domain="[('product_id','=', product_id)]", help="Products repaired are all belonging to this lot", oldname="prodlot_id"),
-        'guarantee_limit': fields.date('Warranty Expiration', help="The warranty expiration limit is computed as: last move date + warranty defined on selected product. If the current date is below the warranty expiration limit, each operation and fee you will add will be set as 'not to invoiced' by default. Note that you can change manually afterwards.", states={'confirmed': [('readonly', True)]}),
+        'guarantee_limit': fields.date('Warranty Expiration', states={'confirmed': [('readonly', True)]}),
         'operations': fields.one2many('mrp.repair.line', 'repair_id', 'Operation Lines', readonly=True, states={'draft': [('readonly', False)]}, copy=True),
         'pricelist_id': fields.many2one('product.pricelist', 'Pricelist', help='Pricelist of the selected partner.'),
         'partner_invoice_id': fields.many2one('res.partner', 'Invoicing Address'),