diff --git a/src/sound/music_dumb.cpp b/src/sound/music_dumb.cpp
index d0423e256..8405228a3 100644
--- a/src/sound/music_dumb.cpp
+++ b/src/sound/music_dumb.cpp
@@ -986,6 +986,15 @@ MusInfo *MOD_OpenSong(FILE *file, BYTE *musiccache, int size)
 			duh = dumb_read_asy_quick(f);
 		}
 	}
+	else if (size >= 8 &&
+		dstart[0] == MAKE_ID('O','K','T','A') &&
+		dstart[1] == MAKE_ID('S','O','N','G'))
+	{
+		if ((f = dumb_read_allfile(&filestate, start, file, musiccache, headsize, size)))
+		{
+			duh = dumb_read_okt_quick(f);
+		}
+	}
 
 	if ( ! duh )
 	{