ORDER

Kathy Perry pleaded guilty to conspiracy to distribute crack cocaine. See 21 U.S.C. §§ 846, 841(a)(1). In December 2005 she was sentenced to 10 years’ imprisonment, the statutory minimum since the offense involved at least five grams. See id. § 841(b)(l)(B)(iii). At sentencing the prosecutor told the district court that Perry had provided information about a fugitive coconspirator, and that the government anticipated filing a post-sentence motion for a reduced sentence if he was arrested and prosecuted. See Fed. R.Crim.P. 35(b). The government never filed a Rule 35(b) motion, so Perry, by then pro se, filed one herself more than a year after sentencing. The district court denied Perry’s motion because she received the statutory minimum, the government had not moved to reduce that term, and it was too late — so the court thought— for the government to file a motion under Rule 35(b). Perry appeals.

Rule 35(b) authorizes a district court to reduce a sentence for substantial assistance only“upon the government’s motion.” Fed.R.Crim.P. 35(b)(1); see Wade v. Unit*550ed States, 504 U.S. 181, 185-86, 112 S.Ct. 1840, 118 L.Ed.2d 524 (1992). The government must act within a year of sentencing unless the defendant’s information was not known or did not become useful until later. Fed.R.CrimP. 35(b)(2). Here, the government has yet to file a Rule 35(b) motion for Perry’s substantial assistance. And Perry did not allege any breach of promise, unconstitutional motive, or bad faith on the government’s part. See Wade, 504 U.S. at 185-87, 112 S.Ct. 1840; United States v. Wilson, 390 F.3d 1003, 1011-13 (7th Cir. 2004). The district court in this case thus had no choice but to deny Perry’s motion.

AFFIRMED.