diff --git a/src/open9x.h b/src/open9x.h
index 666ed1e8d..fc1771281 100644
--- a/src/open9x.h
+++ b/src/open9x.h
@@ -866,7 +866,11 @@ enum AUDIO_SOUNDS {
     AU_FRSKY_LAST,
 };
 #if defined(AUDIO)
-#include "audio.h"
+#if defined(PCBARM)
+#include "ersky9x/audio.h"
+#else
+#include "ersky9x/audio.h"
+#endif
 #else
 #include "beeper.h"
 #endif