diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md
index a202960f03..3de33595ab 100644
--- a/draft-ietf-quic-transport.md
+++ b/draft-ietf-quic-transport.md
@@ -5877,6 +5877,7 @@ The initial contents of this registry are shown in {{iana-error-table}}.
 | 0x7   | FRAME_ENCODING_ERROR      | Frame encoding error          | {{error-codes}} |
 | 0x8   | TRANSPORT_PARAMETER_ERROR | Error in transport parameters | {{error-codes}} |
 | 0xA   | PROTOCOL_VIOLATION        | Generic protocol violation    | {{error-codes}} |
+| 0xD   | CRYPTO_BUFFER_EXCEEDED    | CRYPTO data buffer overflowed | {{error-codes}} |
 {: #iana-error-table title="Initial QUIC Transport Error Codes Entries"}