I made a mistake on my UC Apps. How do I fix it?

I said that I started work in June, 2012, but I actually started in June, 2011. I doubt this even matters because prior to 06/2012 I was still in high school (from what I hear they really only care about your extracurriculars during college). Should I even bother with this?

They won’t care that much. You could add it in your TAU in comments, I guess. But it probably doesn’t matter.

thanks @lindyk8