Juan Villanueva-Ochoa, a Mexican citizen, appeals his 46-month sentence imposed after his conviction for illegal reentry of a deported alien, in violation of 8 U.S.C. § 1326. Villanueva-Ochoa had previously been deported following two convictions for domestic battery — one of which included punching the pregnant mother of his child in the stomach so hard that she suffered vaginal bleeding. The district court enhanced Villanueva-Ochoa’s *264 sentence under § 1326(b)(2) because he had been previously deported following an aggravated felony. Villanueva-Ochoa contends that the district court unconstitutionally erred when it enhanced his sentence because his prior felony conviction was not alleged in the indictment or admitted to during the plea hearing.

“We review de novo the constitutional challenges to a sentence.” United States v. Cantellano, 430 F.3d 1142, 1144 (11th Cir. 2005). The Supreme Court held in Almendarez-Torres v. United States that “subsection [8 U.S.C. 1326(b)(2) ] is a penalty provision, which simply authorizes a court to increase the sentence for a recidivist. It does not define a separate crime. Consequently, neither the statute nor the Constitution requires the Government to charge the factor that it mentions, an earlier conviction, in the indictment.” 523 U.S. 224, 226-227, 118 S.Ct. 1219, 1222, 140 L.Ed.2d 350 (1998). Although VillanuevaOchoa argues that the Supreme Court has cast doubt on its reasoning in Almendarez-Torres, that decision has not been overruled. See Apprendi v. New Jersey, 530 U.S. 466, 489, 120 S.Ct. 2348, 2362, 147 L.Ed.2d 435 (2000) (“[I]t is arguable that Almendarez-Torres was incorrectly decided”); but see id. at 490, 120 S.Ct. at 2362 (“Apprendi does not contest [Almendarez-Torres’] validity and we need not revisit it for purposes of our decision today”). “As we have said several times, unless and until the Supreme Court specifically overrules Almendarez-Torres, we will continue to follow it.” United States v. Greer, 440 F.3d 1267, 1273 (11th Cir. 2006) (citing United States v. Camacho-Ibarquen, 410 F.3d 1307, 1316 n.3 (11th Cir. 2005) (“[T]he Supreme Court has not explicitly overruled Almendarez-Torres. As a result, we must follow Almendarez-Torres.”); United States v. Guadamuz-Solis, 232 F.3d 1363 (11th Cir. 2000) (“Almendarez-Torres remains the law until the Supreme Court determines that Almendarez-Torres is not controlling precedent.”)).

AFFIRMED.