diff --git a/xmppgateway.ini.sample b/xmppgateway.ini.sample
index 6d244ce..7bd503e 100644
--- a/xmppgateway.ini.sample
+++ b/xmppgateway.ini.sample
@@ -1,28 +1,32 @@
 ; SylkServer XMPP gateway application configuration file
 
 [general]
 
 ; Comma-separated list of domains for which this server is responsible
 ; Add the xmmp-server records into the DNS server responsable for these domains
 ; At least one domain is required!
 ; domains =
 
 ; The following settings are the default used by the software, uncomment
 ; them only if you want to make changes
 
+; Prefix that will be appended to all domains in the above setting, which will
+; be used as a Multi User Chat (MUC) component
+; muc_prefix = conference
+
 ; IP address used for listening to XMPP connections; empty string or any means listen on interface used
 ; by the default route
 ; local_ip =
 
 ; local_port = 5269
 
 ; If set to True (default) MSRP will be used to translate XMPP Instant Messaging, else SIP MESSAGE will be used
 ; Note: XMPP 'normal' messages (not chat messages) are always translated to SIP MESSAGE requests
 ; use_msrp_for_chat = True
 
 ; Timeout to terminate a SIP session if no chat traffic was received
 ; sip_session_timeout = 600
 
 ; Enable verbose logging of XMPP stantzas
 ; trace_xmpp = False