The U.S. Supreme Court on Tuesday ruled against a law banning “conversion therapy” for LGBTQ+ kids in Colorado, one of about two dozen states that ban the discredited practice.

An 8-1 high court majority sided with a Christian counselor who argues the law banning talk therapy violates the First Amendment. The justices agreed that the law raises free speech concerns and sent it back to a lower court to decide if it meets a legal standard that few laws pass.

Justice Neil Gorsuch, writing for the court, said the law “censors speech based on viewpoint.” The First Amendment, he wrote, “stands as a shield against any effort to enforce orthodoxy in thought or speech in this country.”