Maisie Williams tricked “Game of Thrones” fans with the best April Fool’s Day comment Monday.

Williams was chatting to Jimmy Fallon on “The Tonight Show” when she accidentally dropped a “huge spoiler.”

Fallon asked Williams to mention a bunch of her character’s best “GoT” moments after the actress said that she’d been warned to keep the interview spoiler-free.

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She told the talk-show host, “I’ve decided to just keep a tight lip on everything. HBO have sent out a lot of memos recently about just saying nothing, so there’s really nothing that I can say they’d absolutely kill me.”

However, after going through a list of her favourite bits, she then told the audience that her character dies in the eagerly anticipated series.

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Williams then panicked, told Fallon to edit the clip and eventually walked off the set after realizing her “mistake.”

See more in the clip above.

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