Spotify has pulled the works of some of the most popular comedians, including Kevin Hart, Tiffany Haddish, John Mulaney, and Jim Gaffigan due to a royalty dispute. First reported by The Wall Street Journal, a number of high-profile entertainers are pursuing royalty payments for their jokes when they’re played on the radio, as well as on services like Spotify, Pandora, YouTube, and SiriusXM.

The effort to win the royalties is being led by global rights administrator Spoken Giants. That organization wants to collect royalties for underlying composition copyrights of spoken-word media. They point to songwriters, who are paid for use of their music and lyrics.

 As the WSJ notes, comedians are typically paid by their label or distributor — along with digital performance rights organization SoundExchange — when a digital service plays their content. However, they’re technically not compensated for writing that content, something that Spoken Giants hopes to change.

Spoken Giants began reaching out to streaming services and satellite and terrestrial radio in the spring. Other services and radio companies have been talking with Spoken Giants. After some negotiations with Spotify, Spoken Giants said it received an email on the eve of Thanksgiving saying it would remove works represented by the organization until an agreement could be reached.

After failed negotiations with Spoken Giants, Spotify removed hundreds of comedians’ content from the service. In a statement to the WSJ, Spotify said that it already paid “significant amounts of money for the content in question, and would love to continue to do so.” 

With Spotify expected to have over 400 million users by the end of the year, the affected comedians may be missing out on massive amounts of visibility.