diff --git a/hooks/filesystem-sanity.py b/hooks/filesystem-sanity.py
index 9c23ef5..ce666d4 100755
--- a/hooks/filesystem-sanity.py
+++ b/hooks/filesystem-sanity.py
@@ -109,6 +109,7 @@
     'net-dns/dnsmasq',
     'net-firewall/iptables',
     'net-fs/samba',
+    'net-misc/chrony',
     'net-misc/dhcpcd',
     'net-misc/openssh',
     'net-print/cups',