On Thursday, Arnold Schwarzenegger‘s son Joseph Baena showed off just how closely he resembles his famous father.

In a photo taken at the gym, Baena flexed his muscles wearing nothing but a pair of black shorts and gray converse sneakers. Posing with his arms outward, the 21-year-old recreated Schwarzenegger’s classic pose from 1976.

“Just a lil thicc,” Baena captioned the full body shot on Instagram.

The original photo, which Baena’s pose was clearly inspired by, was taken right after Schwarzenegger, 71, won Mr. Olympia for the sixth straight time in 1975.

In total, the legendary bodybuilder won the competition seven times, according to bodybuilding.com.

Baena’s followers also couldn’t help but notice the similarities between the father-son duo and commented on how much he looked like Schwarzenegger.

“Dude we are literally seeing a Mr. Olympia,” wrote one Instagram user.

“I see a new terminator,” joked another person, referencing his father’s iconic role as a killer robot in The Terminator franchise. “Time to reboot the movie.”

But it isn’t the first time that fans have marveled over the pair’s resemblance.

Baena — who is Schwarzenegger’s son with Mildred Baena, his former housekeeper whom he had an affair with — frequently shares his fitness regimen and progress on Instagram, which often calls attention to their similar looks.

In November, Baena shared another look at his physique while at the gym. Wearing a yellow cutoff shirt and black shorts in the video, he flexed his muscles and hinted that his progress at body lifting was just the start of his fitness routine.

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