diff --git a/sound/null_s.h b/sound/null_s.h
new file mode 100644
--- /dev/null
+++ b/sound/null_s.h
@@ -0,0 +1,8 @@
+#ifndef SOUND_NULL_H
+#define SOUND_NULL_H
+
+#include "hal.h"
+
+extern const HalSoundDriver _null_sound_driver;
+
+#endif