diff --git a/inventory/group_vars/asgard/vars.yml b/inventory/group_vars/asgard/vars.yml
index c998470..acde346 100644
--- a/inventory/group_vars/asgard/vars.yml
+++ b/inventory/group_vars/asgard/vars.yml
@@ -1,11 +1,4 @@
 ---
-# --------------------------------------------------------------------------------------------------
-# system:base
-# --------------------------------------------------------------------------------------------------
-system_base_additional_tcp_ports: "{{
-  services_host_services | dict2items | map(attribute='value.tcp', default=[]) | flatten |
-  union(system_base_tcp_ports | default([])) }}"
-
 # --------------------------------------------------------------------------------------------------
 # system:var
 # --------------------------------------------------------------------------------------------------
diff --git a/inventory/host_vars/yggdrasil/vars.yml b/inventory/host_vars/yggdrasil/vars.yml
index 53cab9e..42609f2 100644
--- a/inventory/host_vars/yggdrasil/vars.yml
+++ b/inventory/host_vars/yggdrasil/vars.yml
@@ -29,7 +29,7 @@ system_base_udp_ports:
   - 68                          # dhcp (libvirt)
   - 137                         # samba
   - 138                         # samba
-system_base_tcp_ports:
+system_base_additional_tcp_ports:
   - 139                         # samba
   - 445                         # samba
 system_base_unattended_upgrades_blacklist: