diff --git a/manifests/policy.pp b/manifests/policy.pp
index 98343742..5c2fbc88 100644
--- a/manifests/policy.pp
+++ b/manifests/policy.pp
@@ -46,13 +46,13 @@
 #    Defaults to false.
 #
 class heat::policy (
-  $enforce_scope        = $facts['os_service_default'],
-  $enforce_new_defaults = $facts['os_service_default'],
-  Hash $policies        = {},
-  $policy_path          = '/etc/heat/policy.yaml',
-  $policy_default_rule  = $facts['os_service_default'],
-  $policy_dirs          = $facts['os_service_default'],
-  Boolean $purge_config = false,
+  $enforce_scope                    = $facts['os_service_default'],
+  $enforce_new_defaults             = $facts['os_service_default'],
+  Openstacklib::Policies $policies  = {},
+  Stdlib::Absolutepath $policy_path = '/etc/heat/policy.yaml',
+  $policy_default_rule              = $facts['os_service_default'],
+  $policy_dirs                      = $facts['os_service_default'],
+  Boolean $purge_config             = false,
 ) {
   include heat::deps
   include heat::params