A rural high school teaching a religion-based alternative to evolution was sued by a group of parents who said the class should be stopped because it violates the U.S. Constitution.

Frazier Mountain High School in Lebec, Calif. violated the separation of church and state while attempting to legitimize the theory of “intelligent design” in a philosophy course taught by a minister’s wife, according to the U.S. District Court suit filed by parents of 13 students.