diff --git a/TQL b/TQL
index 6c11930e4fd85f80a745eaea7c7169c6955794ac..e1e6d303fc4d4f9c6cf9b5e22b2e77f353c65c6d 100644
--- a/TQL
+++ b/TQL
@@ -118,7 +118,7 @@ disk: disk index list (eg: 1 2 3 4)
 disk1_path: disk 1 path (eg: /dev/vg/sex)
 disk1_size: disk 1 size (eg: 1024)
 disk1_pool: storage pool back reference (eg: vg) [vmonly]
-disk1_voln: storage pool volume back reference (eg: ) [vmonly]
+disk1_vol: storage pool volume back reference (eg: titi) [vmonly]
 
 == grammar ==
 input: [ prop ] EOL