diff --git a/mdadm.8.in b/mdadm.8.in
index ec2b1f8..089639e 100644
--- a/mdadm.8.in
+++ b/mdadm.8.in
@@ -125,7 +125,7 @@ Currently supported growth options including changing the active size
 of component devices and changing the number of active devices in
 Linear and RAID levels 0/1/4/5/6,
 changing the RAID level between 0, 1, 5, and 6, and between 0 and 10,
-changing the chunk size and layout for RAID 0,4,5,6, as well as adding or
+changing the chunk size and layout for RAID 0,4,5,6,10 as well as adding or
 removing a write-intent bitmap.
 
 .TP
@@ -2463,7 +2463,7 @@ change the "size" attribute for RAID1, RAID4, RAID5 and RAID6.
 increase or decrease the "raid\-devices" attribute of RAID0, RAID1, RAID4,
 RAID5, and RAID6.
 .IP \(bu 4
-change the chunk-size and layout of RAID0, RAID4, RAID5 and RAID6.
+change the chunk-size and layout of RAID0, RAID4, RAID5, RAID6 and RAID10.
 .IP \(bu 4
 convert between RAID1 and RAID5, between RAID5 and RAID6, between
 RAID0, RAID4, and RAID5, and between RAID0 and RAID10 (in the near-2 mode).