diff --git a/zips/zip-0230.rst b/zips/zip-0230.rst
index 074c0340d..44462585e 100644
--- a/zips/zip-0230.rst
+++ b/zips/zip-0230.rst
@@ -467,6 +467,8 @@ An issuance note, ``IssueNote`` contains the following fields:
 +-----------------------------+------------------------------+------------------------------------------------+---------------------------------------------------------------------+
 | 8                           |``value``                     |``uint64``                                      |The amount being issued in this note.                                |
 +-----------------------------+------------------------------+------------------------------------------------+---------------------------------------------------------------------+
+| 32                          |``assetBase``                 |``byte[32]``                                    |The encoding of the Asset Base.                                      |
++-----------------------------+------------------------------+------------------------------------------------+---------------------------------------------------------------------+
 | 32                          |``rho``                       |``byte[32]``                                    |This is defined and encoded in the same manner as for Orchard notes  |
 |                             |                              |                                                |in §3.2.1 ‘Note Plaintexts and Memo Fields’.                         |
 +-----------------------------+------------------------------+------------------------------------------------+---------------------------------------------------------------------+