Los Angeles Lakers shooting guard Kobe Bryant on Sunday chided a fan on Twitter for using “gay” as an insult.

Bryant, 34, responded to @PacSmoove's “you're gay” tweet: “Just letting you know @PacSmoove @pooke09 that using 'your gay' as a way to put someone down ain't ok! #notcool delete that out ur vocab.”

In 2011, NBA Commissioner David Stern fined the five-time NBA champion $100,000 for calling a referee at a game a “fucking faggot.” The incident prompted the Lakers to film a Public Service Announcement (PSA) about not using “gay” in a derogatory manner.

Another user, Steven Madrigal (@onepercentofone) reminded Bryant of the incident: “@kobebryant @Pooke09 Come on Kobe...you called a ref a FAGGOT. Don't preach, just win.”

“@onepercentofone @pooke09 exactly! That wasn't cool and was ignorant on my part. I own it and learn from it and expect the same from others,” Bryant responded.