diff --git a/src/apps/mediaplayer/playlist/Playlist.h b/src/apps/mediaplayer/playlist/Playlist.h
index bf575df8e3..f41d6aa4fe 100644
--- a/src/apps/mediaplayer/playlist/Playlist.h
+++ b/src/apps/mediaplayer/playlist/Playlist.h
@@ -26,6 +26,8 @@
 #include <Locker.h>
 
 class BMessage;
+class BString;
+
 
 class Playlist : public BLocker {
 public: