diff --git a/platform/drivers/audio/audio_ttwrplus.c b/platform/drivers/audio/audio_ttwrplus.c
index 7d024912..56d0cb49 100644
--- a/platform/drivers/audio/audio_ttwrplus.c
+++ b/platform/drivers/audio/audio_ttwrplus.c
@@ -19,6 +19,7 @@
  ***************************************************************************/
 
 #include <interfaces/audio.h>
+#include "SA8x8.h"
 
 const struct audioDevice outputDevices[] =
 {