Derrick McNairy, federal prisoner #33456-077, was convicted of possession *431 of cocaine base with intent to distribute and sentenced to serve 15 years in prison. He filed a 28 U.S.C. § 2241 habeas corpus petition to challenge his sentence, and he now appeals the district court’s dismissal of his § 2241 petition. He argues that he should be permitted to pursue § 2241 relief in accordance with the savings clause of 28 U.S.C. § 2255 because the remedy under § 2255 is inadequate and because he is actually innocent of his sentence. He relies on United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005), in support of his substantive sentencing claims.

McNairy has not shown that the district court erred in determining that his purported § 2241 petition was best construed as an unauthorized successive § 2255 motion. See Tolliver v. Dobre, 211 F.3d 876, 877 (5th Cir. 2000); Cox v. Warden, Fed. Det. Ctr., 911 F.2d 1111, 1113 (5th Cir. 1990). McNairy likewise has not shown that he should be permitted to proceed under the savings clause of § 2255. See Reyes-Requena v. United States, 243 F.3d 893, 904 (5th Cir. 2001); Pack v. Yusuff, 218 F.3d 448, 452-53 (5th Cir. 2000). The judgment of the district court is AFFIRMED.