How do I stop a screaming habit of a 5M old?

Autumn • 👼 2018 🌈 11/12/19 👼 2021 🌈 05/05/22

Just recently my son has figured out how to scream. At first it was cute because he'd even do it when he's happy. . Now he only does it when he's mad. He doesn't even cry anymore. Just full on SCREAMS. . How can I make him understand its not OK at such a young age?