Kale, the leafy green food formerly best known as a plate decoration, underwent somewhat of a renaissance in the past year. Kale’s surge in popularity naturally came along with merchandising ideas, and one Vermont artist/kale enthusiast is getting an interesting lesson about copyright law as a result.

Bo Muller-Moore, a folk artist from Montpelier, VT, designed a shirt with the slogan “Eat More Kale.” Chick-fil-A, a fast-food chain that does not have any locations in Vermont, argued that “Eat More Kale” is too similar to their slogan “eat mor chikin.”

While Vermont Governor Peter Shumlin vowed to help Muller-Moore, the U.S. Patent and Trademark Office gave Muller-Moore a “preliminary no” when he tried to trademark his phrase.