diff --git a/inventory/host_vars/mailman01.stg.iad2.fedoraproject.org b/inventory/host_vars/mailman01.stg.iad2.fedoraproject.org
index 2df86ea89c..e982d78660 100644
--- a/inventory/host_vars/mailman01.stg.iad2.fedoraproject.org
+++ b/inventory/host_vars/mailman01.stg.iad2.fedoraproject.org
@@ -2,6 +2,7 @@
 datacenter: iad2
 eth0_ipv4_gw: 10.3.166.254
 eth0_ipv4_ip: 10.3.166.40
+external: false
 ks_repo: http://10.3.163.35/repo/rhel/RHEL9-x86_64/
 ks_url: http://10.3.163.35/repo/rhel/ks/kvm-rhel
 vmhost: vmhost-x86-09.stg.iad2.fedoraproject.org