diff --git a/include/camera/Camera.h b/include/camera/Camera.h
index 9ba5b3d..f7b3b42 100644
--- a/include/camera/Camera.h
+++ b/include/camera/Camera.h
@@ -87,6 +87,9 @@
     // In sendCommand passing arg1 = 0 will disable,
     // while passing arg1 = 1 will enable the shutter sound.
     CAMERA_CMD_ENABLE_SHUTTER_SOUND = 4,
+
+    // cmdType to play recording sound.
+    CAMERA_CMD_PLAY_RECORDING_SOUND = 5,
 };
 
 // camera fatal errors