diff --git a/plugins/zfs/zfs_list b/plugins/zfs/zfs_list
index 942b1cb6..a88b0f65 100755
--- a/plugins/zfs/zfs_list
+++ b/plugins/zfs/zfs_list
@@ -66,19 +66,19 @@ graph_args --base 1024 -r -l 0 --vertical-label Bytes --upper-limit ${values[6]}
 graph_info This graph shows how a zfs filesystem is used.
 graph_category fs
 graph_period second
-usedbydataset.label UsedByDataset
+usedbydataset.label Used by Dataset
 usedbydataset.draw AREA
 usedbydataset.info Used space by Dataset
 usedbydataset.colour FF0000
-usedbychildren.label UsedByChildren
+usedbychildren.label Used by Children
 usedbychildren.draw STACK
 usedbychildren.info Used space by children
 usedbychildren.colour FFCC33
-usedbysnapshots.label UsedBySnapshots
+usedbysnapshots.label Used by Snapshots
 usedbysnapshots.draw STACK
 usedbysnapshots.info Used space by snapshot
 usedbysnapshots.colour 0000FF
-usedbyrefreservation.label Usedbyrefreservation
+usedbyrefreservation.label Used by refreservation
 usedbyrefreservation.draw STACK
 usedbyrefreservation.info Used space by Ref Reservation
 usedbyrefreservation.colour 33CCFF