While accepting her Golden Globe Award for best actress in a TV comedy series or musical, Lena Dunham gave a shout-out to Chad Lowe.
The actress said she had promised her mother and herself that if she ever won such an award she wouldn't forget to thank Lowe.
Hilary Swank, who was married to Lowe at the time, famously did forget him when she accepted her best actress Oscar in 2000 for Boys Don't Cry.
It took the Golden Globes audience a few seconds to get the joke.
As for Lowe, he took to Twitter to joke, "You forgot to thank me?! After all we've been through? I'm shocked (sic)."