Defendant-Appellant Nicolas Sanchez-Garcia appeals from his sentence following his jury-verdict conviction for illegal reentry into the United States after a previous removal. He contends that the district court erred by sentencing him under the mandatory sentencing regime held unconstitutional in United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005). Examination of the record shows that Sanchez-Garcia’s contention is correct. The government concedes that Sanchez-Garcia preserved this argument in the district court and that it cannot show that the error was harmless beyond a reasonable doubt. Accordingly, we VACATE Sanchez-Garcia’s sentence, and the case is REMANDED for resentencing. See United States v. Mares, 402 F.3d 511, 520 n. 9 (5th Cir.), cert. denied, — U.S.-, 126 S.Ct. 43, 163 L.Ed.2d 76 (2005). We therefore need not consider Sanchez-Garcia’s remaining challenges to his sentence. See United States v. Akpan, 407 F.3d 360, 377 n. 62 (5th Cir. 2005).

*134 SENTENCE VACATED; REMANDED FOR RESENTENCING.