Harry Potter author J.K. Rowling on Thursday criticized a U.K. paper for using “openly gay” to insult a judge.

The Daily Mail used the insult in a headline it published following the British high court's decision that Prime Minister Theresa May must seek Parliamentary approval of her plan to leave the European Union, referred to as Brexit.

“The Judges who blocked Brexit: One founded a EUROPEAN law group, another charged the taxpayer millions for advice and the third is an openly gay ex-Olympic fencer,” the conservative paper's headline read.

The Daily Mail has since changed the headline.

“If the worst they can say about you is you're an OPENLY GAY EX-OLYMPIC FENCER TOP JUDGE, you've basically won life,” Rowling tweeted.

Rowling's response was retweeted over 20,000 times and liked by more than 42,000 followers as of Sunday. Rowling has more than 8.5 million followers on Twitter.

She later retweeted a photo of a sign outside a pub or shop which read, “Openly gay ex-Olympic fencers welcome.”