By Nivea Serrao
February 14, 2017 at 04:04 PM EST
Mike Marsland/WireImage; Dave Benett/Getty Images

Following his recent brush with J.K. Rowling’s writing, Piers Morgan had a few less than kind words about the Harry Potter author on Tuesday.

Commenting on her Valentine’s Day tweet, which featured images of an article about the success of her books, Morgan said, “No one plays the celebrity game more abusively or ruthlessly than you, Ms ‘Intensely Private Billionaire.'”

BuzzFeed reporter Jamie Ross then pointed out that the article Rowling tweeted was one Morgan himself had written — a list he put together in 2010 of the “100 British celebrities who really matter.”

Morgan eventually realized his mistake three hours later and replied to Ross’ tweet saying, “I knew what it was. Just surprised I put her as high as 97th.”

See the whole exchange below.