Update README-VTN.md
diff --git a/xos/configurations/cord/README-VTN.md b/xos/configurations/cord/README-VTN.md
index 8c25be8..adc6ac5 100644
--- a/xos/configurations/cord/README-VTN.md
+++ b/xos/configurations/cord/README-VTN.md
@@ -36,7 +36,7 @@
 Compute nodes (all of them):
 
     systemctl stop neutron-plugin-openvswitch-agent
-    /usr/share/openvswitch/scripts/ovs-ctl
+    emacs /usr/share/openvswitch/scripts/ovs-ctl
         update settings as per vtn docs to make port 6640 visible
     service openvswitch-switch restart