Carlos Rene Machuca appeals the sentence imposed following his jury convictions for conspiracy to commit bank fraud, aiding and abetting bank fraud, money laundering, and aiding and abetting identity theft. Machuca argues that a U.S.S.G. § 3C1.1 enhancement for perjury unconstitutionally infringes on a defendant’s right to testify on his own behalf in a criminal proceeding because the Government may prove the enhancement by only a preponderance of the evidence. This argument is foreclosed. See United States v. Dunnigan, 507 U.S. 87, 96-97, 113 S.Ct. 1111, 122 L.Ed.2d 445 (1993); United States v. Gourley, 168 F.3d 165, 171 n. 10 (5th Cir.1999).

AFFIRMED.