diff --git a/WHATS_NEW b/WHATS_NEW
index 3fde645ab..44b1df872 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,6 @@
 Version 2.02.169 - 
 =====================================
+  Also unmount mount point on top of MD device if using blkdeactivate -u.
   Restore check preventing resize of cache type volumes (2.02.158).
   Add missing udev sync when flushing dirty cache content.
   vgchange -p accepts only uint32 numbers.
diff --git a/scripts/blkdeactivate.sh.in b/scripts/blkdeactivate.sh.in
index 443af9cb2..436c72e84 100644
--- a/scripts/blkdeactivate.sh.in
+++ b/scripts/blkdeactivate.sh.in
@@ -171,7 +171,8 @@ device_umount_one() {
 }
 
 device_umount() {
-	test "$devtype" != "lvm" && test "${kname:0:3}" != "dm-" && return 0
+	test "$devtype" != "lvm" && test "${kname:0:3}" != "dm-" \
+          && test "${kname:0:2}" != "md" && return 0
 
 	# FINDMNT is defined only if umount --all-targets is not available.
 	# In that case, read the list of multiple mount points of one device