diff --git a/ansible/roles/masakari/templates/masakari-monitors.conf.j2 b/ansible/roles/masakari/templates/masakari-monitors.conf.j2
index 0a8a6b547e..18009ddb80 100644
--- a/ansible/roles/masakari/templates/masakari-monitors.conf.j2
+++ b/ansible/roles/masakari/templates/masakari-monitors.conf.j2
@@ -11,6 +11,7 @@ project_domain_id = {{ default_project_domain_id }}
 username = {{ masakari_keystone_user }}
 password = {{ masakari_keystone_password }}
 cafile = {{ openstack_cacert | default(omit) }}
+api_interface = internal
 
 [libvirt]
 connection_uri = "qemu+tcp://{{ migration_interface_address | put_address_in_context('url') }}/system"
diff --git a/releasenotes/notes/use-internal-api-for-masakari-monitor-9ba03166ff375601.yaml b/releasenotes/notes/use-internal-api-for-masakari-monitor-9ba03166ff375601.yaml
new file mode 100644
index 0000000000..eeb0ac2639
--- /dev/null
+++ b/releasenotes/notes/use-internal-api-for-masakari-monitor-9ba03166ff375601.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    ``masakari-monitor`` will now use the internal API to
+    reach masakari-api.
+    `LP#1858431
+    <https://bugs.launchpad.net/kolla-ansible/+bug/1858431>`__