I don't believe so. We had a similar thing happen over on The Last of Us wiki, with the general consensus being that there is no way to transfer anon edits over to a registered account. If you want, you can check with Staff via http://community.wikia.com/wiki/Special:Contact/

If you really care that much about taking credit, you can make another edit and mention in the edit summary that the previous one was also yours.

There is a way, IIRC, but it requires a high level of skill and knowledge of programming. Since I have neither, I forgot who mentioned it and where :). The short version: it's an awful lot of work for one edit. If you're going to make many more edits, that one edit isn't that big of a deal.

Alternatively, you can just list to the anon's contributions page on your user page.

I really don't feel like going through super techy stuff, and honestly it isn't a big deal to me if I get credited so i'm just gonna leave it. Thanks for the help, you guys :)