diff --git a/conf/install_update_dovecot.conf.sample b/conf/install_update_dovecot.conf.sample
index dfa78ca..9e6baa5 100644
--- a/conf/install_update_dovecot.conf.sample
+++ b/conf/install_update_dovecot.conf.sample
@@ -68,7 +68,7 @@ else
 fi
 
 xmpp_listener=false
-xmpp_listener_addresses="127.0.0.1 $ipv4"
+xmpp_listener_addresses="$ipv4 $ipv6"
 xmpp_listener_port="44444"
 
 # ---