The youngster sent the Sin City actress a bouquet of flowers to apologise for the unfortunate event.
Alba, 34, posted a picture of the "beautiful" bouquet on her Instagram, writing: "Wow! Came home to the most beautiful flower tree I've ever [seen]! Thank you @kyliejenner you are a sweetheart!! So thoughtful. (sic)"
Earlier this week, the actress opened up about the "shocking" incident on Watch What Happens Live with Andy Cohen.
Alba explained: "I got like body checked. Yeah, and it was like, by two of them. I was like, 'Whoa, whoa! What's happening?'
"I thought there was like a fire. Like, I was like, 'What's going on?'" she recalled. "Um, but I guess someone was just leaving the building."
She added: "It was shocking."
- Bang! Showbiz