Help! I messed up my UC application!

I accidentally put the wrong history in my academic history category. I put AP US history instead of AP World history, making me A-G ineligible because it says US history twice. But I got As in both classes. I called to find out what I should do and they said for me to email UC apply to do an academic Update. Did I just ruin my chances of getting into a UC? Can I do anything else to help it?

I don’t think it’s a big deal.

It was a simple mistake, I don’t think it holds so much weight it affects your admission chances.

Keep any documentation that the UC’s have seen the correction just on case an issue does arise.

OMG THIS HAPPENED TO ME I JUST REALIZED! HOW DID YOU FIX IT?

I made this mistake too, how do you know this won’t affect my admissions?