We affirm the judgment and sentence, but strike the order assessing court costs. Since the court adjudged appellant to be insolvent, it was not authorized to assess costs against him. § 939.15, Fla.Stat. (1977); Cox v. State, 334 So.2d 568 (Fla.1976).
GRIMES, C. J., and HOBSON and DAN-AHY, JJ., concur.