Rob Kardashian

Rob Kardashian was hospitalized late Tuesday to have his appendix removed, according to his mother, Kris Jenner.

"Wow LOOONG night in the ER! Pooooor Rob! My son has no more appendix!! I love you @RobKardashian you were so brave! Xoxox," Jenner, 55, tweeted Wednesday.

Check out photos from Keeping Up with the Kardashians

Kardashian, 24, also tweeted a picture of himself in the hospital, joking that "this is what happens when you don't eat Wheaties."

The Keeping Up with the Kardashians star is now recovering and "doing fine," according to TMZ, which first reported the news.