Adding a character style to only one running header

Hello,

I have a running header in my document that picks up the ChapterTitle. For one particular chapter title, there is a superscript applied to one of the numbers in the ChapterTitle. The superscript doesn't come through on the running header.

I cannot figure out a way to get the character style changed just for that specific number of the running header other than making the running header a completely manual entry in the Master view, but that isn't ideal. Is this an easy fix that I am missing?  Image of issue here: http://cl.ly/image/370Y3n0O1g1r

Thanks,

Marita