Marvin Gibbs, federal prisoner # 75279-079, appeals from the district court’s denial of his post-conviction motion filed under 18 *880 U.S.C. § 3742(a). The district court construed the motion as an unauthorized successive 28 U.S.C. § 2255 motion.

Gibbs argues that the district court erred in recharacterizing his motion as a successive 28 U.S.C. § 2255 motion. As the district court correctly determined, Gibbs cannot seek post-conviction relief pursuant to 18 U.S.C. § 3742(a) because he has already filed a direct criminal appeal. See United States v. Early, 27 F.3d 140, 142 (5th Cir. 1994). Because Gibbs has previously filed a 28 U.S.C. § 2255 motion and because the instant motion raises issues that could have been raised in the prior motion, the district court did not err in construing his post-conviction motion as an unauthorized successive 28 U.S.C. § 2255 motion. See In re Cain, 137 F.3d 234, 235 (5th Cir. 1998). Accordingly, the judgment of the district court is AFFIRMED.