diff --git a/src/music/os2_m.h b/src/music/os2_m.h
--- a/src/music/os2_m.h
+++ b/src/music/os2_m.h
@@ -3,8 +3,30 @@
 #ifndef MUSIC_OS2_H
 #define MUSIC_OS2_H
 
-#include "../hal.h"
+#include "music_driver.hpp"
+
+class MusicDriver_OS2: public MusicDriver {
+public:
+	/* virtual */ bool CanProbe() { return true; }
+
+	/* virtual */ const char *Start(const char * const *param);
+
+	/* virtual */ void Stop();
+
+	/* virtual */ void PlaySong(const char *filename);
 
-extern const HalMusicDriver _os2_music_driver;
+	/* virtual */ void StopSong();
+
+	/* virtual */ bool IsSongPlaying();
+
+	/* virtual */ void SetVolume(byte vol);
+};
+
+class FMusicDriver_OS2: public MusicDriverFactory<FMusicDriver_OS2> {
+public:
+	/* virtual */ const char *GetName() { return "os2"; }
+	/* virtual */ const char *GetDescription() { return "OS/2 Music Driver"; }
+	/* virtual */ Driver *CreateInstance() { return new MusicDriver_OS2(); }
+};
 
 #endif /* MUSIC_OS2_H */