diff --git a/addon/lib/rmupdate.tcl b/addon/lib/rmupdate.tcl
index d1df189..f318f7c 100644
--- a/addon/lib/rmupdate.tcl
+++ b/addon/lib/rmupdate.tcl
@@ -749,7 +749,8 @@ proc ::rmupdate::install_firmware_version {version lang {reboot 1} {dryrun 0}} {
 	after 5000
 	
 	if {$reboot && !$dryrun} {
-		exec /sbin/reboot
+		exec /bin/sync
+		exec /sbin/reboot -f
 	}
 }