diff --git a/config-generic b/config-generic
index 9c1cf4b94..f7eef4183 100644
--- a/config-generic
+++ b/config-generic
@@ -590,7 +590,7 @@ CONFIG_ASYNC_RAID6_TEST=m
 CONFIG_BLK_DEV_DM=y
 CONFIG_DM_CRYPT=m
 CONFIG_DM_DEBUG=y
-# CONFIG_DM_DELAY is not set
+CONFIG_DM_DELAY=m
 CONFIG_DM_MIRROR=y
 CONFIG_DM_MULTIPATH=m
 CONFIG_DM_SNAPSHOT=y
diff --git a/kernel.spec b/kernel.spec
index d1d1e24a0..e2c9ea5e0 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -2290,6 +2290,9 @@ fi
 #                 ||----w |
 #                 ||     ||
 %changelog
+* Wed Mar 20 2013 Dave Jones <davej@redhat.com>
+- Enable CONFIG_DM_DELAY (rhbz 923721)
+
 * Tue Mar 19 2013 Dave Jones <davej@redhat.com> - 3.9.0-0.rc3.git0.5
 - Reenable debugging options.