If you plan on visiting any of the Smithsonian’s museums after today, you’ll want to leave your selfie sticks at home.

The Smithsonian announced an update to its policy on Tuesday that bans the vanity cameraphone tool at its 19 museums and gardens.

“This is a preventive measure to protect visitors and objects, especially during crowded conditions,” the Smithsonian said in a press release.

The Smithsonian already prohibits visitors from taking photos using other camera equipment such as monopods and tripods. The organization encourages “museum visitors to take selfies and share their experiences,” but without the use of additional equipment going forward.

Several New York City museums have already banned selfie sticks from their premises, citing similar concerns over the safety of artifacts.