diff --git a/roles/keycloak/templates/standalone-ha.xml.j2 b/roles/keycloak/templates/standalone-ha.xml.j2
index 893ec0d..98e26f6 100644
--- a/roles/keycloak/templates/standalone-ha.xml.j2
+++ b/roles/keycloak/templates/standalone-ha.xml.j2
@@ -662,7 +662,7 @@
             <inet-address value="{{ keycloak_management_port_bind_address }}"/>
         </interface>
         <interface name="jgroups">
-{% if keycloak_jgroups_subnet is defined and keycloak_jgroups_subnet | string | length > 0 %}
+{% if keycloak_jgroups_subnet is defined and keycloak_jgroups_subnet is not none and keycloak_jgroups_subnet | string | length > 0 %}
             <subnet-match value="{{ keycloak_jgroups_subnet | string }}"/>
 {% elif ansible_default_ipv4 is defined and (ansible_default_ipv4.network + '/' + ansible_default_ipv4.netmask) | ansible.utils.ipaddr('net') | length > 0 %}
             <subnet-match value="{{ (ansible_default_ipv4.network + '/' + ansible_default_ipv4.netmask) | ansible.utils.ipaddr('net') }}"/>
diff --git a/roles/keycloak/templates/standalone-infinispan.xml.j2 b/roles/keycloak/templates/standalone-infinispan.xml.j2
index a030de0..38fbfec 100644
--- a/roles/keycloak/templates/standalone-infinispan.xml.j2
+++ b/roles/keycloak/templates/standalone-infinispan.xml.j2
@@ -700,7 +700,7 @@
             <inet-address value="{{ keycloak_management_port_bind_address }}"/>
         </interface>
         <interface name="jgroups">
-{% if keycloak_jgroups_subnet is defined and keycloak_jgroups_subnet | string | length > 0 %}
+{% if keycloak_jgroups_subnet is defined and keycloak_jgroups_subnet is not none and keycloak_jgroups_subnet | string | length > 0 %}
             <subnet-match value="{{ keycloak_jgroups_subnet | string }}"/>
 {% elif ansible_default_ipv4 is defined and (ansible_default_ipv4.network + '/' + ansible_default_ipv4.netmask) | ansible.utils.ipaddr('net') | length > 0 %}
             <subnet-match value="{{ (ansible_default_ipv4.network + '/' + ansible_default_ipv4.netmask) | ansible.utils.ipaddr('net') }}"/>