Angelina Jolie and Brad Pitt’s Daughter Vivienne, 15, Listed as ‘Vivienne Jolie’ in The Outsiders Playbill

The teenager is one of six children shared by exes Jolie and Pitt

Angelina Jolie and Brad Pitt’s daughter Vivienne appears to have dropped the “Pitt” from her last name.

In the Playbill for the new musical The Outsiders, which Vivienne helped mom Jolie, 48, produce, the 15-year-old is listed as “Vivienne Jolie” instead of “Vivienne Jolie-Pitt,” PEOPLE can confirm.

It is not immediately clear if Vivienne has legally changed her name.

Representatives for both Jolie and Pitt could not be reached for comment.

Vivienne is not the first of Jolie and Pitt’s six children to go by a changed name in recent years.

While joining the Mu Pi chapter of the Alpha Kappa Alpha sorority at her university, Spelman College, last November, the former couple’s eldest daughter Zahara introduced herself as “Zahara Marley Jolie,” a video shared by Essence showed.

Both Vivienne and Zahara’s apparent name changes come after years of reports of strain in Pitt’s relationship with his children since Jolie first filed for divorce and sole physical custody of their kids — Vivienne, Zahara, Knox, Maddox, Pax and Shiloh — in 2016.

In August 2022, a Pitt source told PEOPLE that the actor, 60, was hoping to soon reach a better place with his children amid the exes’ ongoing custody battle. They explained that “it’s been a sad situation for years.”

“Since Angelina filed for divorce, Brad has been focused on having the best relationship possible with his kids,” the insider said. “It’s been very difficult for him. Many times, there have been long gaps where he didn’t see the kids at all.