Defendant appeals a judgment of conviction for violating ORS 815.225(1)(b), which prohibits, among other things, the use of a horn on a vehicle for purposes other than to give a reasonable warning. 1 Defendant moved to dismiss the citation that charged him with violating ORS 815.225(1)(b), contending that the statute violates Article I, section 8, of the Oregon Constitution. We conclude that the court erred in denying the motion; we therefore reverse defendant’s conviction.

We held in City of Eugene v. Powlowski, 116 Or App 186, 840 P2d 1322 (1992), that a city ordinance phrased identically with ORS 815.225(1)(b) violated Article I, section 8. The state concedes that our decision in Powlowski controls the issue presented by defendant’s motion to dismiss, and we accept that concession. It follows that the trial court erred in denying defendant’s motion.

Reversed.