It’s not quite like selling fake protective potions, but J.K. Rowling is still not down with this writing “workshop” using her photo in its promotions.

Read: J.K. Rowling Makes a Powerful Case for Britain Staying in the EU

Rowling tweeted on Thursday about a workshop that teaches people “how to write a best seller and create your 6-7 figure empire” and has a photo of her, along with other successful people, on its site. She implored people not to waste their money on the bestsellerevent.com workshop.

I hate this kind of thing and I don't like my picture being used to sell it. Don't waste your money, people.https://t.co/QfPo8yOGQu

— J.K. Rowling (@jk_rowling) July 28, 2016

‘Hate’ is a strong word for Rowling, whose books are a pretty long argument in favor of love. But the workshop that will help you “become an author and show you how to double… or even triple… your income!” seems enough to have earned Rowling’s disdain.