Wordpress: How can I add to a custom post type child page its parent as slug?

When setting 'hierarchical' => true to a custom post type and assigning a parent to a page with this custom post type throws 404. It is posible to make this work?

Expected result: http://ift.tt/290PtSG

This works with Wordpress normal pages, but not with custom post types (404 not found).

Thanks in advance!

via Chebli Mohamed