Guillermo Morales-Pitones (Morales), appeals his sentence of 82 months of imprisonment for illegally reentering the United States after deportation. As his sole issue, Morales challenges the district court’s denial of his request for an offense level reduction for acceptance of responsibility. He notes that, at trial, he contested only the question of his alienage and that he conceded the other elements of the offense of illegal reentry.

*442 Alienage is one of the elements of an offense under § 1326. See United States v. Cardenas-Alvarez, 987 F.2d 1129, 1131-1132 (5th Cir. 1993). By challenging at trial whether he was an alien, Morales contested one of the essential factual elements of the offense of illegal reentry and put the Government to its burden of proof as to this element. The district court’s determination that Morales was not entitled to an adjustment for acceptance of responsibility was not “without foundation.” United States v. Washington, 340 F.3d 222, 227 (5th Cir. 2003); see U.S.S.G. § 3E1.1, comment, (n.2).

AFFIRMED.