Prince’s record company is suing Jay Z’s Roc Nation copyright infringement, saying it illegally offered the late musician’s songs on its music streaming service, according to court records.

The lawsuit filed in the United States District Court in Minnesota on Tuesday by NPG Records, claims Jay Z’s Roc Nation illegally offered such Prince hits as “If I Was Your Girlfriend” and “1999” on its subscription-based streaming service, Tidal.

“Roc Nation, through its Tidal service, is exploiting many copyrighted Prince works,” according to the lawsuit.

While Tidal was authorized to offer some Prince songs to its customers, the service expanded the number around the time of the musician’s death on June 7 without approval from the Prince estate trust, it claims.

Roc Nation was not immediately available for comment on the lawsuit, which seeks undisclosed damages.