diff --git a/mmc/openpower-update-bios-attr-table.service b/mmc/openpower-update-bios-attr-table.service
index 898cb7e..6dbb608 100644
--- a/mmc/openpower-update-bios-attr-table.service
+++ b/mmc/openpower-update-bios-attr-table.service
@@ -3,6 +3,7 @@
 After=org.open_power.Software.Host.Updater.service
 After=obmc-flash-bios-init.service
 After=openpower-process-host-firmware.service
+Before=mboxd.service
 
 [Service]
 Type=oneshot