Randall Lee Thompson appeals his guilty plea conviction and sentence for possession and distribution of pseudoephed-rine. Thompson argues that the district court erred by denying him a downward departure under U.S. Sentencing Guidelines Manual (U.S.S.G.) § 5K2.12 or U.S.S.G. § 5K2.13 based on diminished capacity or mental duress.

Thompson does not argue and the record does not indicate that the district court believed that it was without authority to depart from the Guidelines. Because the district court did not misapprehend its authority, we lack jurisdiction to review the court’s denial of a downward departure. See United States v. Sam, 467 F.3d 857, 861 (5th Cir. 2006); United States v. Buck, 324 F.3d 786, 797-98 (5th Cir. 2003).

DISMISSED.