A federal appeals court late Monday said a Michigan trial judge went too far when he ordered the chief executive officers of General Motors and Fiat Chrysler to meet face to face to talk about how to resolve a racketeering lawsuit that pits the automotive giants against each other.

The U.S. Court of Appeals for the Sixth Circuit issued a rare order to block the court-ordered meeting of GM’s CEO Mary Barra and FCA’s CEO Michael Manley. The initial order from the trial judge, Paul Borman, said only the CEOs would be required to meet. Borman later amended his order to allow an attorney for each side.