diff --git a/protocols.csv b/protocols.csv
index bd903a7..19e2838 100644
--- a/protocols.csv
+++ b/protocols.csv
@@ -2,6 +2,7 @@ code,	size,	name,		comment
 4,	32,	ip4,
 6,	16,	tcp,
 17,	16,	udp,
+32,	0,	dtls,
 33,	16,	dccp,
 41,	128,	ip6,
 42,	V,	ip6zone,	rfc4007 IPv6 zone