Russell’s conviction as a principal in the first degree to robbery with a weapon is affirmed. However, the provision in her sentence that she be imprisoned “at hard labor” is not authorized by law, and being merely surplusage, this provision is hereby stricken. Massey v. State, 351 So.2d 376 *869(Fla. 1st DCA 1977). As amended, the sentence is AFFIRMED.