Teenager income

My teen earned $1589 at a summer job that issued a W-2. He also earned $1500 from a church that issued him a 1099-MISC.  I am under the impression that since he has income over $400 on a 1099-MISC he MUST file a federal tax return no matter what.  This results in a a tax liability of $114, which he is not happy about. Is he required to file a federal tax return?