Defendant was sentenced to two concurrent terms of thirty years for attempted murder and robbery and a concurrent term of five years for grand theft. The court retained jurisdiction over the first half of both thirty-year sentences.1 Section 947.-16(3), Florida Statutes (Supp. 1982), provides that when an individual is convicted of two or more felonies and concurrent sentences are imposed, jurisdiction of the trial court shall apply only to the first half of the maximum sentence imposed for the highest felony charged and proven. Accordingly, this cause is remanded with instructions that the court strike the reservation of jurisdiction from one of the thirty-year sentences. Otherwise, the judgments and sentences are affirmed.