diff --git a/developer_manual/ios_library/index.rst b/developer_manual/ios_library/index.rst
index dc2e8fe6a..d72688c1f 100644
--- a/developer_manual/ios_library/index.rst
+++ b/developer_manual/ios_library/index.rst
@@ -19,6 +19,8 @@ setup and process of contribution is
 You might want to start with doing one or two `junior jobs <https://github.com/owncloud/iOS/issues?q=is%3Aopen+is%3Aissue+label%3A%22Junior+Job%22>`_
 to get into the code and note our :doc:`../general/index`
 
+Note that contribution to the iOS client require signing the iOS addendum to the `ownCloud Contributor Agreement <https://owncloud.org/contribute/agreement/>`_. You are permitted to test the iOS client on Apple hardware thanks to the 'iOS license exception <https://owncloud.org/contribute/iOS-license-exception/>`_.
+
 ownCloud iOS Library
 ------------------------
 This document will describe how to the use ownCloud iOS library.  The ownCloud