diff --git a/manifests/keystone/authtoken.pp b/manifests/keystone/authtoken.pp
index 5c07d2a..4636a0d 100644
--- a/manifests/keystone/authtoken.pp
+++ b/manifests/keystone/authtoken.pp
@@ -4,13 +4,13 @@
 #
 # === Parameters
 #
+# [*password*]
+#   (Required) Password to create for the service user
+#
 # [*username*]
 #   (Optional) The name of the service user
 #   Defaults to 'cloudkitty'
 #
-# [*password*]
-#   (Required) Password to create for the service user
-#
 # [*auth_url*]
 #   (Optional) The URL to use for authentication.
 #   Defaults to 'http://localhost:5000'.
@@ -191,7 +191,7 @@
 #  Defaults to $facts['os_service_default'].
 #
 class cloudkitty::keystone::authtoken(
-  $password,
+  String[1] $password,
   $username                       = 'cloudkitty',
   $auth_url                       = 'http://localhost:5000',
   $project_name                   = 'services',