diff --git a/developer_manual/app/index.rst b/developer_manual/app/index.rst
index 3708dfaea..4baa1aab4 100644
--- a/developer_manual/app/index.rst
+++ b/developer_manual/app/index.rst
@@ -16,7 +16,7 @@ App Development
 Intro
 -----
 
-Before you start, please check if there already is a `similar app <http://apps.owncloud.com>`_ you could contribute to. Also, feel free to communicate your idea and plans to the `mailing list <https://mail.kde.org/mailman/listinfo/owncloud>`_ so other contributors might join in.
+Before you start, please check if there already is a `similar app <http://apps.owncloud.com>`_ you could contribute to. Also, feel free to communicate your idea and plans to the `user mailing list <http://mailman.owncloud.org/mailman/listinfo/user>`_ or `developer mailing list <http://mailman.owncloud.org/mailman/listinfo/devel>`_ so other contributors might join in.
 
 Then, please make sure you have set up a development environment: