North Dakota inmate Anthony James Moore appeals the district court’s 1 adverse grant of summary judgment in his 42 U.S.C. § 1983 action. Having conducted de novo review of the record, see Johnson v. Blaukat, 453 F.3d 1108, 1112 (8th Cir. 2006), we find no basis for reversal. Accordingly, we affirm. See 8th Cir. R. 47B. However, as to Moore’s claim alleging a lack of exercise in administrative segregation, we amend the dismissal to be without prejudice, as the record shows he did not administratively exhaust this claim before filing the instant lawsuit. See Johnson v. Jones, 340 F.3d 624, 627 (8th Cir. 2003) (inmate must exhaust before filing suit, or dismissal is mandatory).