diff --git a/src/sunstone/etc/sunstone-server.conf b/src/sunstone/etc/sunstone-server.conf
index 3a50957680..fc87e1a956 100644
--- a/src/sunstone/etc/sunstone-server.conf
+++ b/src/sunstone/etc/sunstone-server.conf
@@ -123,6 +123,7 @@
 :vnc_proxy_key:
 :vnc_proxy_ipv6: false
 :vnc_request_password: false
+:allow_vnc_federation: no
 
 # Login Session Length in seconds, defaults to 1 hour.
 #:session_expire_time: 3600