diff --git a/modules/openstack_project/manifests/puppetmaster.pp b/modules/openstack_project/manifests/puppetmaster.pp
index 5ed3aad3bf..40fd80e55f 100644
--- a/modules/openstack_project/manifests/puppetmaster.pp
+++ b/modules/openstack_project/manifests/puppetmaster.pp
@@ -1,7 +1,7 @@
 # == Class: openstack_project::puppetmaster
 #
 class openstack_project::puppetmaster (
-  $root_rsa_key,
+  $root_rsa_key = 'xxx',
   $sysadmins = [],
   $version   = '3.',
   $ca_server = undef,