Attorneys at Paul, Weiss, Rifkind, Wharton & Garrison on Friday sued Spotify on behalf of a nonprofit involved with distributing mechanical royalties from streaming services to songwriters and music producers, arguing that the Sweden-based audio streaming platform is failing to comply with its obligations under the Copyright Act.

The complaint accuses Spotify of using the launch of its audiobook access product to categorize its $10.99 Premium subscription as a “bundled” subscription, reducing the amount of money reported to the plaintiff nonprofit, the Mechanical Licensing Collective.