diff --git a/table.csv b/table.csv
index ee625ee..ca799e4 100644
--- a/table.csv
+++ b/table.csv
@@ -100,6 +100,7 @@ http,                           multiaddr,      0x01e0,
 json,                           serialization,  0x0200,         JSON (UTF-8-encoded)
 messagepack,                    serialization,  0x0201,         MessagePack
 x11,                            multihash,      0x1100,
+sm3-256,                        multihash,      0x534d,
 blake2b-8,                      multihash,      0xb201,         Blake2b consists of 64 output lengths that give different hashes
 blake2b-16,                     multihash,      0xb202,
 blake2b-24,                     multihash,      0xb203,