Rommell Duane Benjamin appeals the sentence imposed following his guilty plea conviction for possession of five grams or more of cocaine base. He argues that he was sentenced under a mandatory guideline sentencing system in violation of United States v. Booker, — U.S. -, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005). Benjamin contends that the district court may have imposed a lesser sentence under a discretionary system.

Sentencing a defendant pursuant to a mandatory guideline scheme, without an accompanying Sixth Amendment violation, constitutes “Fanfan” error. United States v. Villegas, 404 F.3d 355, 364 (5th Cir. 2005)(discussing the distinction between the two types of error addressed in Booker). Where Fanfan error is raised for the first time on appeal, review is for plain error. United States v. Valenzuelw-Quevedo, 407 F.3d 728, 732-33 (5th Cir.), cert. denied, — U.S.-, 126 S.Ct. 267, — L.Ed.2d-(2005).

Benjamin has met the first two prongs of the plain error test because “Fanfan” error is “error” that is “plain.” See id. However, to meet the third prong of the analysis and show that the error affected his substantial rights, Benjamin bears the burden of “establish[ing] that the error affected the outcome of the district court proceedings.” Id. (internal quotation marks and citation omitted). Benjamin must show “that the sentencing judge— sentencing under an advisory scheme rather than a mandatory one — would have reached a significantly different result.” United States v. Mares, 402 F.3d 511, 521 (5th Cir.), cert. denied, — U.S.-, 126 S.Ct. 43, — L.Ed.2d-(2005).

Benjamin cannot show that the error affected his substantial rights. There is nothing in the record indicating that the district court would have imposed a differ *938 ent sentence if it had known that it was not bound by the sentencing guidelines. See United States v. Taylor, 409 F.3d 675, 677 (5th Cir. 2005). Benjamin cannot demonstrate plain error. The sentence is AFFIRMED.