ON REMAND FROM THE SUPREME COURT OF THE UNITED STATES

This court affirmed the sentence of Robert Wayne Montgomery. United States v. Montgomery, No. 04-10188 (5th Cir. Dec. 16, 2004). The Supreme Court vacated and remanded for further consideration in light of United States v. Booker, — U.S. -, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005). See Montgomery v. United States, — U.S. -, 125 S.Ct. 1948, 161 L.Ed.2d 765 (2005). We requested and received supplemental letter briefs addressing the impact of Booker.

Montgomery argues that his sentence must be vacated and the case remanded *977under Booker because the facts on which the district court relied to enhance his sentence were not charged in the indictment, admitted by him, or proven by the Government beyond a reasonable doubt. Montgomery’s contention that review is de novo because he preserved the Booker error lacks merit. See United States v. Ocana, 204 F.3d 585, 589 (5th Cir. 2000). Montgomery fails to meet his burden of showing that the district court’s sentence under guidelines it deemed mandatory affected his substantial rights such that his sentence amounts to plain error. See United States v. Mares, 402 F.3d 511, 520 (5th Cir. 2005), petition for cert. filed (Mar. 31, 2005)(No. 04-9517).

Because nothing in the Supreme Court’s Booker decision requires us to change our prior affirmance in this case, we reinstate our judgment affirming Montgomery’s conviction and sentence.

AFFIRMED.