diff --git a/addons/mrp/mrp.py b/addons/mrp/mrp.py
index 4bf53972ce5..9e640c2fc23 100644
--- a/addons/mrp/mrp.py
+++ b/addons/mrp/mrp.py
@@ -491,7 +491,7 @@ class mrp_production(osv.osv):
         'company_id': lambda self, cr, uid, c: self.pool.get('res.company')._company_default_get(cr, uid, 'mrp.production', context=c),
     }
     _sql_constraints = [
-        ('name_uniq', 'unique(name, company_id)', 'Order Reference must be unique per Company!'),
+        ('name_uniq', 'unique(name, company_id)', 'Reference must be unique per Company!'),
     ]
     _order = 'priority desc, date_planned asc';