diff --git a/sound/null.c b/sound/null.c
deleted file mode 100644
--- a/sound/null.c
+++ /dev/null
@@ -1,11 +0,0 @@
-#include "stdafx.h"
-#include "openttd.h"
-#include "sound/null.h"
-
-static const char *NullSoundStart(const char * const *parm) { return NULL; }
-static void NullSoundStop(void) {}
-
-const HalSoundDriver _null_sound_driver = {
-	NullSoundStart,
-	NullSoundStop,
-};