diff --git a/config b/config
index c4898e1d..d6b2d2d8 100644
--- a/config
+++ b/config
@@ -13,6 +13,7 @@
 # CalDAV server hostnames separated by a comma
 # IPv4 syntax: address:port
 # IPv6 syntax: [address]:port
+# For example: 0.0.0.0:9999, [::]:9999
 # IPv6 adresses are configured to only allow IPv6 connections
 hosts = 0.0.0.0:5232
 # Daemon flag