diff --git a/ceph-osd-class-set b/ceph-osd-class-set
index be128a2..e8f875c 100755
--- a/ceph-osd-class-set
+++ b/ceph-osd-class-set
@@ -6,6 +6,4 @@ if [ $# -lt 2 ]; then
     exit 1
 fi
 
-osd=$1; shift
-
-ceph osd crush set-device-class "$class" "$@"
+ceph osd crush set-device-class "$@"