diff --git a/include/camera/Camera.h b/include/camera/Camera.h
index 75cf5ff..9ba5b3d 100644
--- a/include/camera/Camera.h
+++ b/include/camera/Camera.h
@@ -82,6 +82,11 @@
     CAMERA_CMD_START_SMOOTH_ZOOM     = 1,
     CAMERA_CMD_STOP_SMOOTH_ZOOM      = 2,
     CAMERA_CMD_SET_DISPLAY_ORIENTATION = 3,
+
+    // cmdType to disable/enable shutter sound.
+    // In sendCommand passing arg1 = 0 will disable,
+    // while passing arg1 = 1 will enable the shutter sound.
+    CAMERA_CMD_ENABLE_SHUTTER_SOUND = 4,
 };
 
 // camera fatal errors