The “Buffy the Vampire Slayer” actress noted the day on Instagram and shared some photos of the couple.
Gellar also joked with Howard Stern, who asked Prinze Jr. over 20 years ago “would he marry Sarah Michelle Gellar even though you know it won’t last?” (Prinze Jr. told Stern it would.)
Stern then bet her that the marriage would not last 10 years.
“You’re going to hunt me down and say, ‘Howard, I owe you money,'” Stern said at the time.
The two actors met while filming “I Know What You Did Last Summer” in 1997 and began dating in 2000. They got engaged a year later.
They married in a ceremony in Puerto Vallarta, Mexico in 2002.
The couple share two children together, a 12-year-old daughter, Charlotte, and a 10-year-old son, Rocky.