Sarah Michelle Gellar is calling in her debts.
Over the weekend, the Buffy the Vampire Slayer star celebrated 20 years of marriage to her husband Freddie Prinze Jr.
She also celebrated the fact that Howard Stern now owes her quite a bit of money.
Taking to Instagram, the Scooby Doo star reminded her followers that Stern had made a bet once upon a time against her and Prinze Jr. lasting as a couple.
The wager was made back in 2001 when Prinze made an appearance on Stern's radio show. Prinze's romance with Gellar came up, and the radio host could not turn down the opportunity to tease him, saying: "So, you will marry Sarah Michelle Gellar even though you know that it won’t last?"
"Oh, absolutely it will last," Prinze - then just 25 years old - replied.
But Stern was adamant, and even went so far as to make a bet against the young couple going the distance.
"I wanna make a written bet with you. In about 10 years, you're gonna hunt me down and go, 'Howard, I owe you money'," he said.
Watch the interview here:Prinze agrees to a written wager and Stern begins tossing around the figure of "a million dollars".
"We’ll do it right now," the actor announced, while Stern joked, "See, for a million, I’d stay married."
A year after the interview, Gellar and Prinze tied to knot. The pair have been married ever since, and even share two children together: a daughter, Charlotte, born in 2009 and a son, Rocky, born in 2012.
So it should come as no surprise to Stern that he owes the couple quite a bit of money.
In honor of her 20th wedding anniversary, Gellar shared screenshots from the infamous interview on her Instagram story. Tagging the SiriusXM radio host, she wrote: "I think you owe us," per HuffPost.
Prinze jokingly reshared the story to his own Instagram. "She will not forget," he wrote alongside laughing emojis.
The loved-up stars first met in 1997 on set of the slasher flick I Know What You Did Last Summer. They went on to form a lifelong bond and co-star in several movies together, including the Scooby-Doo franchise in which they appeared as on-screen couple Daphne and Freddie.