Format of IPv6 addresses

draft-ietf-quic-transport.md

@@ -5305,7 +5305,7 @@ preferred_address (0x0d):
   the end of the handshake, as described in {{preferred-address}}.  This
   transport parameter is only sent by a server.  Servers MAY choose to only send
   a preferred address of one address family by sending an all-zero address and
-  port (0.0.0.0:0 or ::.0) for the other family. IP addresses are encoded in
+  port (0.0.0.0:0 or \[::]:0) for the other family. IP addresses are encoded in
   network byte order.
 
 : The preferred_address transport parameter contains an address and port for