Chance The Rapper has been a vocal fan of WhirlyBall for a while now, but after an incident last night, he’s calling for a boycott of the Chicago amusement center. On Twitter, he alleges that during his last visit, he was mistreated by staff after getting into a dispute with venue security over their new dress code. “It’s very inaccessible if you’re black or friends with black people,” Chance writes. Read his tweets below via Pitchfork.

Crazy how I was just treated at @whirlyball Been coming here for awhile, this new management doesn't know how to treat customers.

— Lil Chano From 79th (@chancetherapper) July 2, 2016

Don't go to @WhirlyBall it's very inaccessible if you're black or friends with black people, they've clearly outlined in their dress code

— Lil Chano From 79th (@chancetherapper) July 2, 2016

Don't bother trying to speak with the MGMT @WhirlyBall the new armed security will make sure you can't, per managements request.

— Lil Chano From 79th (@chancetherapper) July 2, 2016

I thought for a sec that just the 1825 w Webster @WhirlyBall in Chicago felt this way but it's on the website. Sad end to a family place.

— Lil Chano From 79th (@chancetherapper) July 2, 2016

This @WhirlyBall Dress Code is OD. 🙄 btw "flashy" is super ambiguous same for "improperly fitted". pic.twitter.com/iAjtBKxFrl

— Starrah (@iStarrah) July 2, 2016