diff --git a/README.md b/README.md
index 79f63343..83c70371 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@ Available addons
 ----------------
 addon | version | maintainers | summary
 --- | --- | --- | ---
+[attachment_category](attachment_category/) | 13.0.1.0.0 |  | Adds a document category to help classification
 [document_page](document_page/) | 13.0.1.1.0 |  | Document Page
 [document_page_approval](document_page_approval/) | 13.0.1.3.0 |  | Document Page Approval
 [document_page_group](document_page_group/) | 13.0.1.0.0 |  | Define access groups on documents