diff --git a/include/hardware/bluetooth.h b/include/hardware/bluetooth.h
index 1349114..b9b3b12 100644
--- a/include/hardware/bluetooth.h
+++ b/include/hardware/bluetooth.h
@@ -463,7 +463,7 @@
     int (*init)(bt_callbacks_t* callbacks );
 
     /** Enable Bluetooth. */
-    int (*enable)(void);
+    int (*enable)(bool guest_mode);
 
     /** Disable Bluetooth. */
     int (*disable)(void);