diff --git a/src/apps/mediaplayer/playlist/PlaylistWindow.h b/src/apps/mediaplayer/playlist/PlaylistWindow.h
index 9e1b6d3391..45694f01dd 100644
--- a/src/apps/mediaplayer/playlist/PlaylistWindow.h
+++ b/src/apps/mediaplayer/playlist/PlaylistWindow.h
@@ -24,6 +24,7 @@ class Playlist;
 class PlaylistListView;
 class RWLocker;
 class BButton;
+class BFilePanel;
 
 class PlaylistWindow : public BWindow {
  public: