diff --git a/docs/developer_guides/chap08_binlog.md b/docs/developer_guides/chap08_binlog.md
index 5b8b8e373c..76370da9f2 100644
--- a/docs/developer_guides/chap08_binlog.md
+++ b/docs/developer_guides/chap08_binlog.md
@@ -91,6 +91,7 @@ CREATE_COLLECTION_EVENT
 DROP_COLLECTION_EVENT
 CREATE_PARTITION_EVENT
 DROP_PARTITION_EVENT
+INDEX_FILE_EVENT
 ```
 
 DESCRIPTOR_EVENT must appear in all column files and always be the first event.