How do I make a file not be recognized as a file type?

Specifically, I want to *.json to not be recognized as javascript
(because it isn't).

Other than hacking my system's definitions, what are my ways?

Should I be adding a before/... type override? something in .vimrc?

Thanks,
Sam

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.