William J. Krar appeals his guilty-plea sentence for possession of a chemical weapon in violation of 18 U.S.C. §§ 229 and 229A(a)(l). Krar argues that the enhancement of his sentence pursuant to United States Sentencing Guidelines § 2M6.1(b)(3) violates Supreme Court precedent, including Blakely v. Washington, 542 U.S. 296, 124 S.Ct. 2531, 159 L.Ed.2d 403 (2004), because the enhancement was an element of the offense that should have been charged in the indictment. In Blakely, the Supreme Court held that the Sixth Amendment prohibits state sentences greater than “the maximum sentence a judge may impose solely on the basis of the facts reflected in the jury verdict or admitted by the defendant.” Blakely, 124 S.Ct. at 2537. In United States v. Booker, — U.S. —, —-—, 125 S.Ct. 738, 749-50, 160 L.Ed.2d 621 (2005), the Supreme Court held that the system of enhancements established by the federal sentencing guidelines violates the Sixth Amendment as construed in Blakely.
This court’s review is for plain error because Krar’s Blakely/Booker argument is raised for the first time on appeal. See United States v. Mares, 402 F.3d 511 (5th Cir.2005), petition for cert. filed, No. 04-9517 (U.S. Mar. 31, 2005). The enhancement of Krar’s sentence under U.S.S.G. § 2M6.1(b)(3) was plain error because the facts underlying the enhancement were found by the sentencing judge under a mandatory guidelines system. See Mares, 402 F.3d 511, 521. Krar has not demonstrated, however, that the plain error affected his substantial rights. See id. The district court sentenced Krar to 135 months imprisonment, the top of the applicable guideline range, while indicating concern about the quantity and amount of bomb making material Krar possessed.
Krar also argues that his due process rights were violated because the indictment did not allege the enhancement under the sentencing guidelines, and, thus, he had no notice of that charge against him. As Krar had actual notice that the Government would seek the enhancement, *664there is no plain error. See United States v. Alvarez-Moreno, 874 F.2d 1402, 1411 (11th Cir.1989).
AFFIRMED.