Cal. Code Civ. Proc. § 1031 : CALIFORNIA CODE OF CIVIL PROCEDURE — OF CIVIL ACTIONS — OF MISCELLANEOUS PROVISIONS — OF COSTS — Actions for recovery of wages for labor performed

In actions for the recovery of wages for labor performed, where the amount of the demand, exclusive of interest, does not exceed three hundred dollars ($300), the court shall add, as part of the cost, in any judgment recovered by the plaintiff or cross-complainant, an attorney's fee not exceeding 20 percent of the amount recovered.