Keith A. Harrison appeals the district court’s order revoking his term of supervised release and sentencing him to eighteen months’ imprisonment. Finding no error, we affirm.

Harrison contends the district court erred in refusing to admit evidence explaining why Harrison tested positive for cocaine use. We review for an abuse of discretion, see United States v. Francisco, *259 35 F.3d 116, 118 (4th Cir. 1994), and find none.

Harrison contends his eighteen-month sentence exceeds the statutory maximum provided by 18 U.S.C. § 3583(e)(3) (2000). We find the district court properly sentenced Harrison within the statutory maximum. See United States v. Hager, 288 F.3d 136 (4th Cir. 2002) (holding that a defendant does not receive credit against the maximum revocation prison term for time previously spent on home detention).

Accordingly, we affirm Harrison’s conviction and sentence. We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before the court and argument would not aid the decisional process.

AFFIRMED.