diff --git a/launch/usb_cam-test_flip.launch b/launch/usb_cam-test_flip.launch
index e55d3c7..7cbb5d2 100644
--- a/launch/usb_cam-test_flip.launch
+++ b/launch/usb_cam-test_flip.launch
@@ -7,7 +7,7 @@
     <param name="camera_frame_id" value="usb_cam" />
     <param name="io_method" value="mmap"/>
     <param name="image_flip" value="true"/>
-    <param name="image_flip_code" value="0"/>
+    <param name="image_flip_code" value="-1"/>
   </node>
   <node name="image_view" pkg="image_view" type="image_view" respawn="false" output="screen">
     <remap from="image" to="/usb_cam/image_raw"/>