A woman is suing pan-Asian restaurant chain P.F. Chang's over the prices of their gluten-free options. According to Nation's Restaurant News, Anna Marie Phillips believes that the surcharge on the restaurant's gluten-free menu "violates the Americans with Disabilities Act" by forcing those who cannot eat gluten to pay more. Currently, P.F. Chang's charges gluten-free diners an additional dollar per item, compared to the regular versions of the dishes. The lawsuit argues that the pricing discriminates against consumers with celiac disease.

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Phillips hopes to bring a class-action lawsuit "on behalf of diners with celiac disease or gluten intolerance who ordered items from P.F. Chang's gluten-free menu." Celiac.com writes that the lawsuit claims that over the past four years, more than 3,000 people in 39 states have been affected by the surcharge. The lawsuit also asks for an injunction against the chain to stop them from continuing to enforce the surcharge, restitution for all surcharges paid, and compensatory damages.

It's been a rough year for the chain: In June, P.F. Chang's confirmed that it was a victim of a data breach and that hackers stole the credit and debit card information of customers. The card info was then sold on an underground website where criminals purchase credit card data.

UPDATE: P.F. Chang's comments on their gluten-free menu.