diff --git a/developer_manual/client_apis/index.rst b/developer_manual/client_apis/index.rst
index a2d6aeeeb..233a54ef9 100644
--- a/developer_manual/client_apis/index.rst
+++ b/developer_manual/client_apis/index.rst
@@ -12,4 +12,5 @@ Client APIs
     LoginFlow/index
     ocs-share-api
     ocs-sharee-api
+    activity