diff --git a/bgpd-check-peers.sh b/bgpd-check-peers.sh
index a5c6f18..ee80c5b 100644
--- a/bgpd-check-peers.sh
+++ b/bgpd-check-peers.sh
@@ -15,6 +15,8 @@ PATH=$HOME/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:.
 
 _MAILTO="noc@example.com"
 _TMPDIR=/tmp/check-bgp
+_PIDFILE="${_TMPDIR}"/bgpd-check-peers.pid
+
 _HOSTNAME=$(hostname)
 
 mkdir -p "${_TMPDIR}"