diff --git a/cmd/restic/cmd_check.go b/cmd/restic/cmd_check.go
index f261a45ca..529b2d71d 100644
--- a/cmd/restic/cmd_check.go
+++ b/cmd/restic/cmd_check.go
@@ -83,7 +83,7 @@ func checkFlags(opts CheckOptions) error {
 
 			if percentage <= 0.0 || percentage > 100.0 {
 				return errors.Fatal(
-					"check flag --read-data-subset=n% n must be above 0.0% and 100.0%")
+					"check flag --read-data-subset=n% n must be above 0.0% and at most 100.0%")
 			}
 		}
 	}