The Cannes Film Festival red carpet is perhaps the most rigidly controlled red carpet in the world. Now, the festival has added a new stipulation. No nudity.

One of the biggest celebrity styling trends has been prohibited from the event’s dress code for “decency reasons.”

A rep tells THR that festival’s official charter was just updated to reflect “certain rules that have long been in effect” and the aim is “not to regulate attire per se but to prohibit full nudity on the carpet.