Tokens for Keywords show up as code

I have the token module enabled and tokens work fine elswhere on my site. However if I input a token in to the Keywords field on a node edit page and save it, I only see the code for the token in the source code for the page. For example a simple test of [node:nid] will show up just like that in the source code. I looked at the admin settings for the module and didn't really see anything in regard to tokens. This module's readme simply says "token module (http://drupal.org/project/token) extends built in D7 token functionality." Otherwise keywords work fine if I put in regular text like red, blue green or whatever.