diff --git a/developer_manual/client_apis/index.rst b/developer_manual/client_apis/index.rst
index 199702897..edc80bd6e 100644
--- a/developer_manual/client_apis/index.rst
+++ b/developer_manual/client_apis/index.rst
@@ -13,4 +13,5 @@ Client APIs
     RemoteWipe/index
     ocs-share-api
     ocs-sharee-api
+    activity