“Captain America: Civil War” will divide the Avengers, and Jeremy Renner has confirmed that his character Hawkeye will stick with Steve Rogers (Chris Evans). The actor let the spoiler slip at Wizard World Comic-Con Chicago on Sunday.

An audience member asked Renner why Hawkeye was siding with Captain America, rather than asking what side he is on, ComicBook.com reports. The phrasing made it sound like audiences already knew everyone’s alliances, which may have lead Renner to believe that it was common knowledge.

“I don't know; they wrote me in that side,” he said. “It made sense to me.”

Renner, apparently realizing his slip up, started to backtrack. “Maybe I switched sides,” he quipped. “I don’t know. Maybe I don’t.”

“Captain America: Civil War” will divide the Avengers as they argue over the government controlling people with superpowers. “After another international incident involving the Avengers results in collateral damage, political pressure mounts to install a system of accountability and a governing body to determine when to enlist the services of the team,” Marvel’s synopsis reads. “The new status quo fractures the Avengers while they try to protect the world from a new and nefarious villain.” Characters will either side with Steve Rogers or Tony Stark (Robert Downey Jr.).

Fans believed Hawkeye would side with Captain America after Heroic Hollywood reported, based on information from anonymous sources, that Cap’s team would include the archer, as well as Falcon (Anthony Mackie), the Winter Soldier (Sebastian Stan), Scarlet Witch (Elizabeth Olsen) and Ant-Man (Paul Rudd). Iron Man’s team is rumored to include Black Widow (Scarlett Johansson), Vision (Paul Bettany), War Machine (Don Cheadle) and Spider-Man (Tom Holland). As more information comes out, the report seems to be correct.

Renner’s confirmation means that Black Widow is on Iron Man’s side. A trailer for “Captain America: Civil War” was shown at D23, and several reports noted Black Widow and Hawkeye, formerly best friends, were fighting each other. “Are we still friends?” Widow asks, according to Variety.

“Depends how hard you hit me,” Hawkeye says.

The trailer also confirmed that Ant-Man will be on Captain America’s side.

“Captain America: Civil War” is schedule to hit theaters on May 6, 2016.