diff --git a/global/overlay/etc/puppet/cosmos-db.yaml b/global/overlay/etc/puppet/cosmos-db.yaml
index b96a2562..87465ff8 100644
--- a/global/overlay/etc/puppet/cosmos-db.yaml
+++ b/global/overlay/etc/puppet/cosmos-db.yaml
@@ -120,7 +120,7 @@ classes:
       vms:
         monitor-fre-3.komreg.net: {bridge: br-infra, cpus: '4', description: eid fre
             monitor, gateway: 94.176.224.225, ip: 94.176.224.229, mac: '52:54:20:01:00:02',
-          memory: '4096', nagios_monitor: null, netmask: 255.255.255.240}
+          memory: '4096', netmask: 255.255.255.240}
     entropyclient: null
     infra_ca_rp: null
     mailclient: *id001