diff --git a/etc/init/ypclient.conf b/etc/init/ypclient.conf
index 58c0e96..df09a8a 100644
--- a/etc/init/ypclient.conf
+++ b/etc/init/ypclient.conf
@@ -17,6 +17,7 @@ pre-start script
 	else
 		exit 10
 	fi
+	/sbin/CheckPid /var/run/ypbind.pid
 end script
 
 expect daemon