diff --git a/developer_manual/app/index.rst b/developer_manual/app/index.rst
index 4ed21d523..60e561b34 100644
--- a/developer_manual/app/index.rst
+++ b/developer_manual/app/index.rst
@@ -31,6 +31,5 @@ App development
    publicpage
    testing
    ../api
-   how_to