Ezequiel Hernandez-Juarez (“Hernandez”) appeals the sentence imposed following his guilty-plea conviction for being unlawfully present in the United States following deportation.

We first address Hernandez’s argument that the sentence-enhancement provisions of 8 U.S.C. §§ 1326(b)(1) and 1326(b)(2) are unconstitutional. Hernandez concedes that this argument is foreclosed by Almendarez-Torres v. United States, 523 U.S. 224, 235, 118 S.Ct. 1219, 140 L.Ed.2d 350 (1998), but he seeks to preserve this argument for further review. Apprendi v. New Jersey, 530 U.S. 466, 120 S.Ct. 2348, 147 L.Ed.2d 435 (2000), did not overrule Almendarez-Torres. See Apprendi, 530 U.S. at 489-90, 120 S.Ct. 2348; United States v. Mancia-Perez, 331 F.3d 464, 470 (5th Cir. 2003). The Supreme Court’s decision in United States v. Booker, —U.S.-, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005), also did not overrule AlmendarezTorres. See Booker, 125 S.Ct. at 756. This court must follow the precedent set in Almendarezr-Torres “unless and until the Supreme Court itself determines to overrule it.” Mancia-Perez, 331 F.3d at 470 (quotation marks and citation omitted).

Hernandez also argues that his sentence is illegal under Booker because it was imposed pursuant to a mandatory application of the sentencing guidelines. Because he did not raise a Sixth Amendment objection below, we review this issue for plain error. *641 See United States v. Mares, 402 F.3d 511, 520 (5th Cir. 2005). Hernandez must demonstrate that (1) there is an error; (2) that is plain; and (3) that affects his substantial rights. Id. If these conditions are satisfied, we may exercise our discretion to correct the error if it “seriously affects the fairness, integrity, or public reputation of judicial proceedings.” Id.

We first conclude that the district court committed an error that was plain by sentencing Hernandez under a mandatory application of the sentencing guidelines. See United States v. Valenzuela-Quevedo, 407 F.3d 728, 730 (5th Cir. 2005). At sentencing, the district court stated “I think the sentencing guidelines are too severe myself. But as a judge, I’m bound by them.” We conclude that this statement indicates that the district court would have imposed a lesser sentence under an advisory system. Therefore, Hernandez has met the third prong of the plain error test by showing that the error affected his substantial rights. See United States v. Pennell, 409 F.3d 240, 242 (5th Cir. 2005).

We have previously held that errors in sentencing guidelines calculations that increase a defendant’s sentence seriously affect the fairness, integrity, or public reputation of judicial proceedings. See United States v. Gracia-Cantu, 302 F.3d 308, 313 (5th Cir. 2002). Because Hernandez has shown the likelihood that the error in this case increased his sentence, he has shown that the error seriously affects the fairness, integrity, or public reputation of judicial proceedings. See Pennell, 409 F.3d 240, 242.

The district court’s imposition of Hernandez’s sentence pursuant to a mandatory application of the sentencing guidelines was plainly erroneous. Accordingly, Hernandez’s sentence is VACATED, and this case is REMANDED to the district court for resentencing consistent with Booker.