diff --git a/docs/_source/meet-libre-is.rst b/docs/_source/meet-libre-is.rst
index b471f7d..b0f235a 100644
--- a/docs/_source/meet-libre-is.rst
+++ b/docs/_source/meet-libre-is.rst
@@ -224,7 +224,7 @@ select re-install.
 
 .. code-block:: sh
 
-  certbot -d meet.libre.is
+  sudo certbot -d meet.libre.is
   sudo update-ca-certificates
   sudo systemctl restart nginx.service jicofo.service \
     prosody.service jitsi-videobridge2.service