Francisco Montez appeals his sentence for conspiracy to possess with intent to distribute more than 100 kilograms of marijuana. Montez argues that the evidence is insufficient to support sentence enhancements imposed for obstruction of justice and for his role in the offense. Montez’s arguments are not reviewable on appeal because he waived both issues at sentencing. United States v. Musquiz, 45 F.3d 927, 931 (5th Cir. 1995). Accordingly, the judgment of the district court is AFFIRMED.