The American sat out last weekend's super-G meeting in Val d'Isere due to a sore knee, with one eye on the Games in Pyeongchang, South Korea.
Vonn said at the time that her focus was on the Olympics and she confirmed as much while taking down a social-media dissenter.
A Downhill gold medallist at Vancouver 2010, Vonn has recently been subjected to abuse on social media after criticising US president Donald Trump - one such troll claiming glee while suggesting Vonn would have to miss Pyeongchang due to her most recent injury.
However, Vonn classily responded to shut down the naysayer and also ease fears about her participation at the Games.
She posted: "Actually I'm perfectly fine and will be competing in the Olympics. Sorry to disappoint. Merry Christmas."
Photo by: Getty Images. Caption: Skiing legend Lindsey Vonn