Stephen King is getting the last laugh.

After being blocked on Twitter by Donald Trump in June, the famous horror writer got revenge on the president Thursday evening by declaring that he’d be returning the favor — by blocking Trump from seeing the upcoming film “IT” and television series “Mr. Mercedes,” both based on works by King.

“Donald Trump blocked me on Twitter. I am hereby blocking him from seeing IT or MR. MERCEDES. No clowns for you, Donald. Go float yourself,” King tweeted.

Of course, King doesn’t actually have the power to enforce such a proclamation. But it does seem unlikely Trump would watch a movie from one of his most outspoken critics.

IT” hits theaters Sept. 8.