Sorority women at the University of Virginia have been told not to party with their Greek brothers — or else face sanctions. The order comes down after a widely publicized and subsequently discredited accusation of a fraternity gang rape, which first appeared in Rolling Stone.

Sixteen U.Va. sororities were told by the National Panhellenic Conference not to participate in the annual “Boys’ bid night” fraternity parties, which take place on Saturday. This is one of the biggest party nights of the year for U.Va., and some sorority members have said the schools aren’t treating them like adults.