On a day when Prince William getting a COVID-19 shot should’ve made the headlines, netizens couldn’t help going ga-ga over the 38-year-old’s swole, toned bicep. Early on Thursday, the Duke of Cambridge posted a picture of himself getting vaccinated. His right bicep visible in the picture. As soon as the tweet was out, the comment section flooded with his followers talking only about the well-built arm. “So Prince William is kind of jacked,” a tweet read.

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Prince William, who got infected with COVID-19 last year, received his first vaccine dose on Tuesday. The royal wrote, “To all those working on the vaccine rollout—thank you for everything you’ve done and continue to do.” William obtained the vaccine at London’s Science Museum.

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Prince William’s arm – visible in the picture – caught the attention of Twitter users. He had rolled up his sleeve for the shot. His bicep looked swollen and toned.

Queen Elizabeth II and Prince Charles are the other Royal Family members who have received the COVID-19 vaccine.