Kris Jenner is angry with Kylie Jenner’s boyfriend Tyga for having guns near her youngest daughter, Hollywood Life reported Tuesday. TMZ said Monday that one of Tyga’s friends was carrying a gun at a nightclub reportedly because of the rapper’s expensive taste.

“Kylie may think Tyga’s bad boy image is cool but for Kris, she’s not amused or impressed. Kris is furious that Tyga is riding with his security team and crew showcasing guns. It’s not cool,” a source told Hollywood Life. “Kris can’t seem to figure him out. One day he’s the sweetest kid ever. The next, he’s doing stupid crap like this, making her worried about his relationship with Kylie.”

Furthermore, Kris is also bothered by Tyga wearing expensive jewelry around. “She thinks he’s stupid for wearing such expensive jewelry to clubs and other places,” the source told the entertainment website. “She wishes he’d wake up and actually think this way for himself.”

Recently, Tyga opened up about his 8-year difference between him and his girlfriend. Tyga reportedly said he did not see why his age — he’s  26 — being compared to Jenner’s, 18, was a big deal when they first got together. “I didn’t understand it though,” he said, according to celebrity blogger Perez Hilton. “Because I’m like, ‘This person is a really good person.’”