A Chipotle shareholder is suing the company after the social media frenzy that occurred due to the allegedly small and inconsistent portions across its restaurants.

A Chipotle shareholder is suing the fast-casual chain over viral social media complaints about skimpy portion sizes.

Chipotle Mexican Grill was sued on Monday by shareholders for concealing how many of its restaurants were skimping on portions, forcing the chain to spend more on ingredients and hurting its stock price.

The lawsuit claims the fast-casual chain failed to acknowledge “highly inconsistent” portion sizes until diners’ discontent went viral online.