Page number on the right?

I don't know if this has been discussed but searching turned up so many threads, I couldn't find an answer.

On my Clara, the page number shows up on the right edge of my epubs. It varies in location from page to page and the text on the edge is covered by the number. Since I already have the page number at the bottom so I'd rather not have the one on the side. Is there some way to get rid of it? I couldn't find anything in the patches, but I might not have seen it.