diff --git a/app/templates/index.html b/app/templates/index.html
index e729df8..7ec0a70 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -75,7 +75,13 @@
 
                         {% set containers_raw = d.get('container', []) if d.get('container') else [] %}
                         {% set child_vms = children_map.get(server.hostname, []) %}
-                        {% set child_names = child_vms|map(attribute='hostname')|list %}
+                        {% set child_names = [] %}
+                        {% for vm in child_vms %}
+                            {% set _ = child_names.append(vm.hostname) %}
+                            {% if vm.details and vm.details.get('system', {}).get('hostname') %}
+                                {% set _ = child_names.append(vm.details['system']['hostname']) %}
+                            {% endif %}
+                        {% endfor %}
                         {% set containers = [] %}
                         {% for ct in containers_raw %}
                             {% set ct_name = ct.get('name', ct.get('id', '')) %}