diff --git a/rtfd/public/mdadm/manual.rst b/rtfd/public/mdadm/manual.rst
index 79aaffe..b3eb380 100644
--- a/rtfd/public/mdadm/manual.rst
+++ b/rtfd/public/mdadm/manual.rst
@@ -25,3 +25,11 @@ Assemble
 .. code:: shell
 
  mdadm --assemble /dev/md0
+
+Rename:
+
+.. code:: shell
+
+ mdadm --assemble /dev/md0 \
+ --update name \
+ --name new_host:new_name