SAN FRANCISCO (CBS13) – A law firm in San Francisco has filed a class-action lawsuit against Chipotle on behalf of a consumer.

The suit alleges the high-end Mexican grill chain has been using GMOs in its food despite advertising that it is GMO-free. The lawsuit claims Chipotle’s menu has never been at any time free of GMOs.

The company previously issued a disclaimer advising that there’s not much it can do about genetically modified feed given to animals used it their food.

The class action lawsuit is seeking monetary damages on behalf of consumers who have eaten at chipotle since April 27.