TinyMCE: Doesn't load on custom node types

I've got some custom node types, added by using the hook_node_info. By using the array below, the editor will appear. But as soon as i change the 'module' from 'node' to 'products' to use my own form the editor won't load anymore.

return array(
'products' => array(
'name' => t('Products'),
'module' => 'node',
'description' => t('Add products.'),
'title_label' => t('Title'),
'body_label' => t('Body'),
)
);

Does someone know how to solve this problem?