Camilo Ramos-Hernandez (Ramos) appeals his sentence following his guilty plea conviction for unlawfully transporting illegal aliens within the United States for profit. He argues that the district court reversibly erred in light of United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005), because the court sentenced him pursuant to a mandatory application of the Sentencing Guidelines.

The district court did err in sentencing Ramos pursuant to a mandatory guidelines system. See United States v. Walters, 418 F.3d 461, 463 (5th Cir. 2005). The Government concedes that Ramos preserved this error for appeal. The Government, however, has not shown beyond a reasonable doubt that the error was harmless. See Walters, 418 F.3d at 463; United States v. Woods, 440 F.3d 255, 258-61 (5th Cir. 2006). Accordingly, Ramos’s sentence is vacated, and this case is remanded for resentencing.

CONVICTION AFFIRMED; SENTENCE VACATED; REMANDED FOR RESENTENCING.