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.

After years of complaints about “unlawful” repairability policies, the FTC is suing tractor manufacturer Deere & Company. Repairability advocates are calling it a milestone for consumer rights.

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