diff --git a/manifests/config.pp b/manifests/config.pp
index 384b6be8ccf50750a0298871a88ef42d96a04f6c..70599db9cf60cb0a56322d935a15da8034cae56a 100644
--- a/manifests/config.pp
+++ b/manifests/config.pp
@@ -111,7 +111,7 @@ define mpd::config (
   Optional[Integer] $max_playlist_length                      = undef,
   Optional[Integer] $max_output_buffer_size                   = undef,
   Optional[String] $filesystem_charset                        = undef,
-  Optional[Metadata] $metadata_to_use                         = undef,
+  Optional[Mpd::Metadata] $metadata_to_use                    = undef,
   Boolean $auto_update                                        = true,
   Optional[Integer] $auto_update_depth                        = undef,
   String $config_file = '/etc/mpd.conf',