We affirm the trial court’s denial of appellant’s Florida Rule of Criminal Procedure 3.800 motion because the issue involved, the waiver of additional jail credit, requires an evidentiary hearing. This af-firmance is without prejudice to Sainval filing a motion seeking additional jail credit pursuant to Florida Rule of Criminal Procedure 3.850, within the time remaining under that rule. Autrey v. State, 736 So.2d 94 (Fla. 4th DCA 1999).