Md. Code Ann., State Finance and Procurement § 18-109

(a) (1) If an employee was paid less than the wage rate required under this title the employee is entitled to sue to recover the amount of the difference between the wage rate required under this title and the amount received by the employee. (2) A determination by the Commissioner that an employer is required to make restitution does not preclude an employee from filing an action under this section. (b) (1) An action under this section is considered to be a suit for wages. (2) A judgment in an action under this section shall have the same force and effect as any other judgment for wages. (c) The failure of an employee to protest orally or in writing the payment of a wage that is less than the wage rate required under this title is not a bar to recovery in an action under this section.