diff --git a/manifests/init.pp b/manifests/init.pp
index f36a225..351b4cc 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -81,15 +81,15 @@ class limesurvey (
   Boolean $manage_webserver,
   Boolean $manage_php,
 
-  Optional[String] $dbhost,
-  Optional[String] $dbname,
-  Optional[String] $dbpassword,
-  Optional[String] $dbuser,
-  Optional[String] $sql_root_password,
-  Optional[String] $vhost_name,
-  Optional[String] $vhost_port,
-  Optional[String] $mpm_module,
-  Optional[Hash] $php_packages,
+  Optional[String] $dbuser            = undef,
+  Optional[String] $sql_root_password = undef,
+  Optional[String] $vhost_name        = undef,
+  Optional[String] $vhost_port        = undef,
+  Optional[String] $mpm_module        = undef,
+  Optional[Hash] $php_packages        = undef,
+  Optional[String] $dbhost            = undef,
+  Optional[String] $dbname            = undef,
+  Optional[String] $dbpassword        = undef,
 
   String $database_class    = 'limesurvey::database',
   String $webserver_class   = 'limesurvey::webserver',
diff --git a/spec/acceptance/nomanage_spec.rb b/spec/acceptance/nomanage_spec.rb
new file mode 100644
index 0000000..8a2117a
--- /dev/null
+++ b/spec/acceptance/nomanage_spec.rb
@@ -0,0 +1,22 @@
+require 'spec_helper_acceptance'
+
+describe 'limesurvey' do
+
+  context 'apply without manage_' do
+    it 'should idempotently run' do
+      pp = <<-EOS
+        class { 'limesurvey':
+         www_user          => 'www-data',
+         www_group         => 'www-data',
+         manage_webserver  => false,
+         manage_database   => false,
+         manage_php        => false,
+        }
+      EOS
+
+      apply_manifest(pp, :catch_failures => true)
+      apply_manifest(pp, :catch_changes => true)
+    end
+  end
+
+end