We affirm the defendant’s convictions for battery on a law enforcement officer and aggravated assault on a law enforcement officer. We strike the assessment of a $2 discretionary cost imposed pursuant to section 943.25(13), Florida Statutes (1993), and the imposition of $25 for “administrative costs,” for which no statutory authority was given. See Reyes v. State, 655 So.2d 111 (Fla. 2d DCA 1995).