Installed RedCloth but not found by app

Hi all

Some months ago I developed a rails app that used RedCloth. The gem is installed and everything worked then.

Now I updated Rails to 2.3 (before it was something like 2.1 or so), and now it doesn't find the RedCloth anymore!

uninitialized constant ApplicationHelper::RedCloth

Do I have to manually include it now? Because I don't see it included anywhere, I thought that the gem would be loaded automatically?

Thanks Josh