July 1, 2015 7:38 AM EDT

Minions, the small yellow creatures from the Despicable Me film series, have captured the attention of children everywhere with minion toys flooding toy stores. Now, actor Jon Hamm, a voice in the upcoming Minions movie, explains why they’re also appealing to adults — and it’s probably not the reason you would expect.

“I think these guys, these little minions are scientifically designed to be appealing to children, and not only children but adults,” the Mad Men star told Jon Stewart on The Daily Show Tuesday. “I think the reason they’re appealing to adults is because they look like capsules, they look like pills.”

“You know what movie I want to see?” Stewart replied humorously. “That Xanax movie.”

Check out the rest of the interview below.

Write to Justin Worland at justin.worland@time.com.

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