[Zope] Logout url for cookie crumbler??

I installed cookie crumbler 1.1 and i can now use custom login screens. When a user is logged i also want them to have a logout option. But this does not work. mysite/logout returna a page not found error. With login this does work. Do i have to make a new page? I fidn this weird since tie login pages are created with the cookie crumbler. The documentation about this is also very poor so i hope someone here knows how to do this.