diff --git a/mdadm.rules b/mdadm.rules
index 682e9e8..74646b3 100644
--- a/mdadm.rules
+++ b/mdadm.rules
@@ -42,6 +42,8 @@ ENV{noiswmd}=="?*", GOTO="md_imsm_inc_end"
 ENV{nodmraid}=="?*", GOTO="md_imsm_inc_end"
 SUBSYSTEM=="block", ACTION=="add", ENV{ID_FS_TYPE}=="isw_raid_member", \
 	RUN+="/sbin/mdadm -I $env{DEVNAME}"
+SUBSYSTEM=="block", ACTION=="add", ENV{ID_FS_TYPE}=="ddf_raid_member", \
+	RUN+="/sbin/mdadm -I $env{DEVNAME}"
 SUBSYSTEM=="block", ACTION=="remove", ENV{ID_PATH}=="?*", \
 	ENV{ID_FS_TYPE}=="isw_raid_member", \
 	RUN+="/sbin/mdadm -If $name --path $env{ID_PATH}"
diff --git a/mdadm.spec b/mdadm.spec
index edc3e19..53140f9 100644
--- a/mdadm.spec
+++ b/mdadm.spec
@@ -1,7 +1,7 @@
 Name:        mdadm
 Version:     4.2
 # extraversion is used to define rhel internal version
-%define extraversion 5
+%define extraversion 6
 Release:     %{extraversion}%{?dist}
 Summary:     The mdadm program controls Linux md devices (software RAID arrays)
 URL:         http://www.kernel.org/pub/linux/utils/raid/mdadm/
@@ -143,6 +143,10 @@ install -m644 %{SOURCE6} %{buildroot}/etc/libreport/events.d
 /etc/libreport/events.d/*
 
 %changelog
+* Mon Sep 5 2022 Xiao Ni <xni@redhat.com> - 4.2-6
+- Add ddf auto-assemble in mdadm udev rule
+- Resolves rhbz#2120690
+
 * Thu Aug 25 2022 Xiao Ni <xni@redhat.com> - 4.2-5
 - Update to latest upstream
 - Resolves rhbz#2092330