diff --git a/src/btstack.h b/src/btstack.h
index e4936502e..2d086378f 100644
--- a/src/btstack.h
+++ b/src/btstack.h
@@ -52,6 +52,7 @@
 #include "bluetooth_data_types.h"
 #include "bluetooth_gatt.h"
 #include "bluetooth_sdp.h"
+#include "btstack_audio.h"
 #include "btstack_control.h"
 #include "btstack_debug.h"
 #include "btstack_defines.h"