If you often use popular music to complement your YouTube videos, the service will now warn you about the potential for copyright violations.

YouTube itself doesn’t serve copyright claims, but with its Content ID system, it can identify violations that holders can then ask to be removed. Going forward, however, the service will give you a heads up to say, “Hey, what you’re doing is probably illegal.”

“Starting today, you can search the YouTube Audio Library to determine how using a particular track in your video will affect it on YouTube, specifically if it will stay live on YouTube or if any restrictions apply.”

An example of how the system works is provided. If you try and upload one of your videos with “Boom Clap” by Charli XCX in it, YouTube will essentially flag your video for copyright holders to see, who can then ask for it to be removed at any time. Either that, or ads for monetization will be added.

There are a lot of services out there that provide free music you can use at your discretion, including YouTube’s own Audio Library, but if you insist on using copyrighted music, know that you might suffer the consequences.