In a new clip released Wednesday, Kim Kardashian West tells Khloé Kardashian that their sister Kourtney Kardashian‘s ex checked into rehab for a 30-day program. (The parents of three broke up in July after he was caught partying with another woman, and his alcohol-fueled antics made headlines after the split.)
“He wants to really get it together and wants to go to rehab for a long time,” says Kim, 35. “I think it all sounds amazing, I just hope that he sticks with it.”
After hearing the news, Khloé, 31, says she’s “surprised” but happy Disick decided to seek help.
“I hope he stays and actually like does the treatment,” she tells Kim.
In October, PEOPLE learned that Disick, 32, had entered luxury rehab center Cliffside Malibu after Kourtney, 36, issued an ultimatum about access to their kids: Mason, 6, Penelope, 3, and Reign, 1.
“He wants to make it stick this time because he has come close to losing everything,” a source said.
KUWTK airs Sunday at 9 p.m. ET on E!