ORDER

Lorenzo Eaton pleaded guilty to possessing a firearm after a felony conviction. See 18 U.S.C. § 922(g)(1). He was sentenced to 87 months’ imprisonment and three years’ supervised release. Eaton now appeals his sentence, arguing narrowly that the district court erred when it ordered him to submit to urine tests as a condition of his supervised release without specifying a particular number of tests. The district court left that decision to the probation officer who will supervise Eaton, but Eaton correctly recognizes that the court, not the probation officer, must determine the number of required drug tests. 18 U.S.C. § 3583(d); United States v. Bonanno, 146 F.3d 502, 511 (7th Cir. 1998). Eaton’s failure to object to this condition at sentencing renders our review for plain error only, see United States v. Guy, 174 F.3d 859, 861 (7th Cir. 1999), but, as the government concedes, an inappropriate delegation of judicial authority to the probation office may constitute plain error, United States v. Pandiello, 184 F.3d 682, 688 (7th Cir. 1999). The government thus joins Eaton in urging that the case be *514 remanded, and we agree. We REMAND with directions to the district court to modify the conditions of supervised release to specify the number of drug tests that Eaton must submit to during his supervised release.