diff --git a/magnum/conf/services.py b/magnum/conf/services.py
index 9c8f4be6c3..d03dfc00d8 100644
--- a/magnum/conf/services.py
+++ b/magnum/conf/services.py
@@ -15,12 +15,13 @@ from oslo_config import cfg
 from magnum.i18n import _
 
 service_opts = [
-    cfg.StrOpt('host',
-               help=_('Name of this node. This can be an opaque identifier. '
-                      'It is not necessarily a hostname, FQDN, or IP address. '
-                      'However, the node name must be valid within '
-                      'an AMQP key, and if using ZeroMQ, a valid '
-                      'hostname, FQDN, or IP address.')),
+    cfg.HostAddressOpt('host',
+                       help=_('Name of this node. This can be an opaque '
+                              'identifier. It is not necessarily a hostname, '
+                              'FQDN, or IP address. However, the node name '
+                              'must be valid within an AMQP key, and if using '
+                              'ZeroMQ, a valid hostname, FQDN, or IP '
+                              'address.')),
 ]