diff --git a/src/music/os2_m.cpp b/src/music/os2_m.cpp
--- a/src/music/os2_m.cpp
+++ b/src/music/os2_m.cpp
@@ -12,6 +12,7 @@
 #include "../stdafx.h"
 #include "../openttd.h"
 #include "os2_m.h"
+#include "../base_media_base.h"
 
 #define INCL_DOS
 #define INCL_OS2MM
@@ -49,11 +50,13 @@ static long CDECL MidiSendCommand(const 
 /** OS/2's music player's factory. */
 static FMusicDriver_OS2 iFMusicDriver_OS2;
 
-void MusicDriver_OS2::PlaySong(const char *filename)
+void MusicDriver_OS2::PlaySong(const MusicSongInfo &song)
 {
+	if (song.filetype != MTT_STANDARDMIDI) return;
+
 	MidiSendCommand("close all");
 
-	if (MidiSendCommand("open %s type sequencer alias song", filename) != 0) {
+	if (MidiSendCommand("open %s type sequencer alias song", song.filename) != 0) {
 		return;
 	}