diff -r fc2d1522f741 -r 7ab20f94cc80 src/sound.cpp
--- a/src/sound.cpp	Mon Oct 29 22:30:54 2007 +0000
+++ b/src/sound.cpp	Mon Oct 29 23:02:31 2007 +0000
@@ -15,11 +15,11 @@
 #include "fileio.h"
 #include "newgrf_sound.h"
 #include "helpers.hpp"
+#include "fios.h"
 
 static uint _file_count;
 static FileEntry *_files;
 
-#define SOUND_SLOT 63
 // Number of levels of panning per side
 #define PANNING_LEVELS 16