Index: corosync-2.3.3/init/corosync.service.in
===================================================================
--- corosync-2.3.3.orig/init/corosync.service.in
+++ corosync-2.3.3/init/corosync.service.in
@@ -3,6 +3,7 @@ Description=Corosync Cluster Engine
 ConditionKernelCommandLine=!nocluster
 Requires=network-online.target
 After=network-online.target
+StopWhenUnneeded=yes
 
 [Service]
 ExecStart=@INITWRAPPERSDIR@/corosync start