diff --git a/src/NodaLogEdit.php b/src/NodaLogEdit.php
index bd9e7e5..1a44045 100644
--- a/src/NodaLogEdit.php
+++ b/src/NodaLogEdit.php
@@ -21,6 +21,7 @@ final class NodaLogEdit {
         'base',
         'noda_link',
         'name_variant',
+        'research_note',
         'related',
         'superordinate',
         'subordinate',