Logout URL

Thank you for this great module.
On function wunderbar_page_alter(&$page)
the line $user_btn = check_plain($user->name) .' ('. l(t('logout'), 'logout', array('attributes' => array('alt' => t('logout'), 'title' => t('logout')))) .')';
has incorrectly the link of logout as 'logout' where it should be 'user/logout'.