diff --git a/salt/bro/cron/packetloss.sh b/salt/bro/cron/packetloss.sh
index 422f94d97..5d95583e5 100644
--- a/salt/bro/cron/packetloss.sh
+++ b/salt/bro/cron/packetloss.sh
@@ -1 +1,2 @@
+#!/bin/bash
 /usr/bin/docker exec -it so-bro /opt/bro/bin/broctl netstats | awk -F '[ =]' '{RCVD += $5;DRP += $7;TTL += $9} END { print "rcvd: " RCVD, "dropped: " DRP, "total: " TTL}' >> /nsm/bro/logs/packetloss.log