diff --git a/openerp/addons/base/res/res_users.py b/openerp/addons/base/res/res_users.py
index a018ee6e17d..909b14d5601 100644
--- a/openerp/addons/base/res/res_users.py
+++ b/openerp/addons/base/res/res_users.py
@@ -368,6 +368,12 @@ class res_users(osv.osv):
             default['login'] = _("%s (copy)") % user2copy['login']
         return super(res_users, self).copy(cr, uid, id, default, context)
 
+    def copy_data(self, cr, uid, ids, default=None, context=None):
+        if default is None:
+            default = {}
+        default.update({'login_date': False})
+        return super(res_users, self).copy_data(cr, uid, ids, default, context=context)
+
     @tools.ormcache(skiparg=2)
     def context_get(self, cr, uid, context=None):
         user = self.browse(cr, SUPERUSER_ID, uid, context)