Apparently Winterfell has a barista.

Sharp-eyed viewers noticed a something out of place during episode 4 of Game of Thrones' final season and the mistake has quickly gone viral online.

Sitting on a table during a feast scene is a takeaway cup from the 21st century, and appears to be from Starbucks.

Each episode of the fantasy show reportedly costs $15 million to make, so it's incredible that a cappuccino got past so many eyes and edits.

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Producers of the show are yet to respond or acknowledge the gaffe.

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