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

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

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 U.S. Federal Trade Commission and two states on Wednesday filed suit against Deere (NYSE:DE) claiming the maker of farming machinery illegally monopolized equipment repairs. The agency and state attorneys general from Illinois and Minnesota said in a statement that their complaint argued that Deere (NYSE:DE) withheld significant information