diff --git a/addons/hr/hr.py b/addons/hr/hr.py
index 6613e16467b..0e202a11e74 100644
--- a/addons/hr/hr.py
+++ b/addons/hr/hr.py
@@ -290,7 +290,7 @@ class hr_department(osv.osv):
         'member_ids': fields.one2many('hr.employee', 'department_id', 'Members', readonly=True),
     }
     
-    def copy(self, cr, uid, id, default=None, context=None):
+    def copy(self, cr, uid, ids, default=None, context=None):
         if default is None:
             default = {}
         default = default.copy()