Marvel Studios

Exciting news coming out of the Marvel universe: the Guardians of the Galaxy will officially appear in the next Avengers blockbuster, dubbed Avengers: Infinity War!

Vin Diesel, who voices Guardians favorite Groot, broke the news during a Facebook Live chat on Friday. “The Guardians will be included in Avengers: Infinity War,” he intoned, “and that’s incredibly exciting.”

Earlier this year, it was rumored that Star-Lord and Rocket Raccoon would be included in the next Avengers film. Production on the next two Avengers films—Infinity War and a second part that has yet to receive a new name—will reportedly begin this November in Atlanta.

Avengers: Infinity War is due out on May 4, 2018, while Guardians of the Galaxy will return with Vol. 2 on May 5, 2017.