John Deere’s “unfair” practices raised repair costs for farmers and kept them from being able to make repairs on tractors and other equipment they own, the Federal Trade Commission (FTC) alleges in a new lawsuit.

Minnesota Attorney General Keith Ellison is suing iconic tractor manufacturer John Deere over farmers’ rights to repair their own machines. Citing the frustration of farmers who are forced to rely on authorized dealers to fix broken-down tractors,

The lawsuit comes after years of the equipment manufacturer locking farmers out of making basic repairs to their equipment.