The Federal Trade Commission has filed a lawsuit against agricultural equipment giant Deere & Company, alleging it holds a monopoly on repair services.

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.

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

The U.S. Federal Trade Commission on Wednesday sued farm equipment maker Deere, alleging it illegally drives up repair costs by forcing farmers to rely on its authorized dealer network. The lawsuit argues Deere has unlawfully boosted profits by requiring farmers to use its network of authorized dealers for repairs,

The Federal Trade Commission sued Deere, alleging the tractor maker limits farmers’ ability to repair their own equipment, giving Deere an illegal monopoly on repair services. The FTC’s lawsuit, filed Wednesday in Chicago federal court,

The suit alleges that Deere tried to increase the cost of repairing its equipment while also forcing customers to rely on Deere-approved dealers to make the repairs.

The Federal Trade Commission has sued the tractor manufacturer John Deere. The organization alleges “unfair” practices, high repair costs and an inability for regular consumers to repair devices on their own.

John Deere is facing a new federal antitrust lawsuit over its equipment repair practices as of Wednesday, this one filed by an arm of the federal government itself. The Federal Trade Commission, joined by the attorneys general of Illinois and Minnesota,