diff --git a/docs/api/index.rst b/docs/api/index.rst
index 6da7af0a18665a44367c2f4fa81d278749457699..44da5dee7305d1bb99bfb203557ecd0a60fcc495 100644
--- a/docs/api/index.rst
+++ b/docs/api/index.rst
@@ -74,4 +74,5 @@ attributes and method signatures etc.
    rattail/util
    rattail/vendors.catalogs
    rattail/vendors.handler
+   rattail/vendors.orders
    rattail/win32