Actress Emma Watson graduated from Rhode Island’s Brown University yesterday with a degree in English Literature…and an undercover bodyguard by her side.

At the ceremony, the Harry Potter star stood next to what looked like just another graduating student.

However, Watson’s buddy was actually an undercover policewoman acting as a security guard for the high-profile actress.

Her secret identity was revealed after the ceremony, when she took off her robe and escorted Watson to her car with her gun clearly in sight.

The 24-year-old’s graduation is a huge achievement considering that she has starred in five Hollywood films since enrolling in the college in 2009.

! pic.twitter.com/Ts1nej4xve

— Emma Watson (@EmWatson) May 25, 2014