I was accepted by a school and I'm going to enroll at the school this fall. So I was just reviewing my resume the other day and discovered I made a stupid mistake. I wrote that I interned at a bank during my summer days back in college under my working experience....And I wrote the wrong bank name...

Should I send an email to the admission office with a new resume? How big a deal is it? Are they going to revoke my offer? Sorry I am a bit paranoid..
