diff --git a/ansible/roles/neutron/templates/ml2_conf.ini.j2 b/ansible/roles/neutron/templates/ml2_conf.ini.j2
index c92385994c..2b43db9efb 100644
--- a/ansible/roles/neutron/templates/ml2_conf.ini.j2
+++ b/ansible/roles/neutron/templates/ml2_conf.ini.j2
@@ -72,7 +72,7 @@ extensions = {{ neutron_agent_extensions|map(attribute='name')|join(',') }}
 {% endif %}
 
 [ovs]
-{% if inventory_hostname in groups["network"] or (inventory_hostname in groups["compute"] and computes_need_external_bridge ) %}
+{% if inventory_hostname in groups["network"] or (inventory_hostname in groups["compute"] and computes_need_external_bridge | bool ) %}
 bridge_mappings = {% for bridge in neutron_bridge_name.split(',') %}physnet{{ loop.index0 + 1 }}:{{ bridge }}{% if not loop.last %},{% endif %}{% endfor %}
 {% endif %}
 
diff --git a/ansible/roles/neutron/templates/ml2_conf_xenapi.ini.j2 b/ansible/roles/neutron/templates/ml2_conf_xenapi.ini.j2
index 51ebabc60a..51e822bdbf 100644
--- a/ansible/roles/neutron/templates/ml2_conf_xenapi.ini.j2
+++ b/ansible/roles/neutron/templates/ml2_conf_xenapi.ini.j2
@@ -12,7 +12,7 @@ root_helper =
 [ovs]
 of_listen_address = {{ os_xenapi_variables.domu_himn_ip }}
 ovsdb_connection = tcp:{{ xenserver_himn_ip }}:{{ ovsdb_port }}
-{% if computes_need_external_bridge %}
+{% if computes_need_external_bridge | bool %}
 bridge_mappings = {% for interface in neutron_external_interface.split(',') %}physnet{{ loop.index0 + 1 }}:{{ os_xenapi_variables.domu_vifs[interface]["bridge"] }}{% if not loop.last %},{% endif %}{% endfor %}
 {% else %}
 bridge_mappings =
diff --git a/ansible/roles/openvswitch/handlers/main.yml b/ansible/roles/openvswitch/handlers/main.yml
index d631076ea1..0654ecd0d3 100644
--- a/ansible/roles/openvswitch/handlers/main.yml
+++ b/ansible/roles/openvswitch/handlers/main.yml
@@ -38,7 +38,7 @@
   changed_when: status.stdout.find('changed') != -1
   when:
     - inventory_hostname in groups["network"]
-      or (inventory_hostname in groups["compute"] and computes_need_external_bridge)
+      or (inventory_hostname in groups["compute"] and computes_need_external_bridge | bool )
   with_together:
     - "{{ neutron_bridge_name.split(',') }}"
     - "{{ neutron_external_interface.split(',') }}"