The Harry Potter 20th Anniversary: Return to Hogwarts special was all about nostalgia but fans spotted a mistake. A childhood photo of Emma Roberts, the American Horror Story and Scream Queens actress, was used instead of the real Hermione Granger, Emma Watson.

A fan pointed out the error and with receipts no less, a screenshot of the same photo from the HBO Max special that Roberts had previously shared on her Instagram.

GUYS HELP ME THATS LITERALLY EMMA ROBERTS NOT EMMA WATSON ☠️☠️☠️☠️☠️☠️☠️☠️☠️ #ReturnToHogwarts#HarryPotter20thAnniversarypic.twitter.com/bLbXcCUpnh

— ???????????????????? (@vee_delmonico99) January 1, 2022

In a statement to Entertainment Weekly, the producers of Return to Hogwarts admitted the mistake and promised to correct the issue."Well spotted Harry Potter fans!" reads the statement. "You brought an editing mistake of a mislabeled photograph to our attention. New version up shortly."

The special Harry Potter 20th Anniversary: Return to Hogwarts premiered on New Year's Day and marked the first time that most of the cast members had been together since the epic film franchise wrapped filming. The first Harry Potter film, Harry Potter and the Sorcerer's Stone arrived in theaters in 2001 and spawned a franchise that concluded ten years later, after the eighth film was released in 2011.

A prequel spinoff franchise, Fantastic Beasts made its debut in 2016, and a third installment, Fantastic Beasts: The Secrets of Dumbledore will premiere on April 15, 2022.

Harry Potter 20th Anniversary: Return to Hogwarts is currently streaming on HBO Max.

Also Read: Emma Watson fell in love with Harry Potter co-star Tom Felton; says, ‘but nothing ever happened romantically’