*920 OPINION

Derrick Ramon Smith appeals the district court’s sentence of thirty-six months’ imprisonment following its revocation of his supervised release. Smith asserts that this term of incarceration exceeds the statutory maximum established by the classification of his offense. Finding no error, we affirm. Smith pled guilty in 1999 to aiding and abetting the possession with intent to distribute of an unspecified quantify of cocaine base and marijuana, in violation of 21 U.S.C. § 841(a)(1) (2000) and 18 U.S.C. § 2 (2000). The district court imposed a thirty-seven month custodial sentence followed by four years of supervised release. However, following Smith’s initial release in 2001, he violated the terms of that supervised release, for which the district court imposed a term of thirty-six months’ incarceration. Citing Apprendi v. New Jersey, 530 U.S. 466, 120 S.Ct. 2348, 147 L.Ed.2d 435 (2000), Smith alleges the thirty-six months’ incarceration the district court imposed exceeds the maximum of two years’ imprisonment authorized for violations of a term of supervised release imposed as punishment for a Class C felony. We disagree.

Smith’s challenge incorrectly asserts he was originally sentenced for committing a Class C felony. Because the count of Smith’s indictment to which he pled guilty did not charge quantity, Smith contends that only a sentence in accordance with § 841(b)(1)(C), which is a Class C felony, see 18 U.S.C. § 3559(a) (2000), was proper. Smith’s written plea agreement, however, clearly contemplated his sentencing for the Class B felony described in § 841(b)(1)(B), as it noted a potential term of incarceration of five to forty years and a supervised release term of five years. Further, the presentence report, to which no objections were filed, indicates a sufficient factual basis to support a sentence in accordance with § 841(b)(1)(B). Hence, because felonies are classified by the relevant statutory maximum rather than the actual sentence imposed, see United States v. Gonzalez, 922 F.2d 1044, 1049 (2d Cir. 1991), and Smith’s guilty plea subjected him to a potential sentence of five to forty years’ incarceration, the district court’s imposition of a thirty-six-month sentence following Smith’s revocation of his supervised release was proper. *

Accordingly, we affirm Smith’s 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.