doc-gen turning obj:func with arguments into obj.func in the generated documents.

I have a file with some weird metatable stuff (I don't know if I'm using the correct terms), and Illuaminate will render the functions without arguments as object:function(), but it renders the functions with arguments as object.function(args). I don't think this is how it should render it. Is there any fix, or is this just intended behaviour?

I can manually edit the HTML to replace the . with a : on the page, but I don't think that's the proper solution to this.