diff --git a/roles/rkhunter/templates/rkhunter.conf.j2 b/roles/rkhunter/templates/rkhunter.conf.j2
index da90d2508d..dba06adce0 100644
--- a/roles/rkhunter/templates/rkhunter.conf.j2
+++ b/roles/rkhunter/templates/rkhunter.conf.j2
@@ -365,6 +365,9 @@ ALLOWDEVFILE=/dev/.udev/db/*
 ALLOWDEVFILE=/dev/.udev/rules.d/99-root.rules
 ALLOWDEVFILE=/dev/.udev/uevent_seqnum
 ALLOWDEVFILE=/dev/md/autorebuild.pid
+{% if ansible_hostname == 'notifs-backend01' %}
+ALLOWDEVFILE=/dev/shm/fmn-cache.dbm
+{% endif %}
 
 #
 # This setting tells rkhunter where the inetd configuration