How to keep superscript format when generating a table of contents

Hi,

I have a superscript ® in a title in a document that needs to be brought in the Table of contents. When I do generate the TOC, I cannot keep the superscript format in the TOC.

I could cheat and replace it manually, but there has to be a way it stays with those properties every time I regenerate the TOC.

Any idea how?

Regards.