The 67-year-old actor took to Instagram Wednesday to share a photo from the set of the new sci-fi action sequel, which recently completed filming in San Francisco.
In the photo, Schwarzenegger can be seen clad in silhouette and sitting in a production chair labeled "Terminator Genysis." The film's title had originally been referred to in the media as "Terminator: Genesis" prior to Schwarzenegger's post.
"Hasta la vista, baby. I want to thank the cast and crew of @TerminatorGenisys for a fantastic shoot," he wrote.
Schwarzenegger will be reprising his role as the cyborg assassin following his absence in the 2009 lackluster, "Terminator Salvation," which starred Christian Bale as human resistance fighter John Connor.
Jai Courtney, J.K. Simmons, Matt Smith and Courntey B. Vance will also star.
"Terminator: Genisys" arrives in theaters on July 1, 2015.