diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index 32c65c561..f15c88e3b 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -4829,6 +4829,11 @@ matrix_static_files_enabled: true
 
 matrix_static_files_container_network: "{{ (matrix_playbook_reverse_proxy_container_network if matrix_playbook_reverse_proxy_type == 'playbook-managed-traefik' else matrix_static_files_identifier) }}"
 
+matrix_static_files_additional_networks_auto: |-
+  {{
+    ([matrix_playbook_reverse_proxyable_services_additional_network] if (matrix_playbook_reverse_proxyable_services_additional_network and matrix_playbook_reverse_proxy_type != 'playbook-managed-traefik') else [])
+  }}
+
 matrix_static_files_container_labels_traefik_enabled: "{{ matrix_playbook_traefik_labels_enabled }}"
 matrix_static_files_container_labels_traefik_docker_network: "{{ matrix_playbook_reverse_proxyable_services_additional_network }}"
 matrix_static_files_container_labels_traefik_entrypoints: "{{ devture_traefik_entrypoint_primary }}"