diff --git a/src/music/cocoa_m.h b/src/music/cocoa_m.h
--- a/src/music/cocoa_m.h
+++ b/src/music/cocoa_m.h
@@ -20,7 +20,7 @@ public:
 
 	/* virtual */ void Stop();
 
-	/* virtual */ void PlaySong(const char *filename);
+	/* virtual */ void PlaySong(const MusicSongInfo &song);
 
 	/* virtual */ void StopSong();