diff --git a/fence/config-default.yaml b/fence/config-default.yaml
index cdb0f77a2e..6b7e1848f2 100644
--- a/fence/config-default.yaml
+++ b/fence/config-default.yaml
@@ -302,6 +302,7 @@ ACCESS_TOKEN_COOKIE_NAME: "access_token"
 # Note that the session token also stores information for the
 # ``flask.session`` in the ``context`` field of the token.
 SESSION_COOKIE_NAME: "fence"
+SESSION_COOKIE_DOMAIN: 
 
 # The domain of the browser cookie in which the session token will be stored.
 # Leave unset (not empty string!) for normal single-site deployment.