diff --git a/README.rst b/README.rst
index 67bd6ab..a1ec5fe 100644
--- a/README.rst
+++ b/README.rst
@@ -243,6 +243,7 @@ Thanks for making PyEcore better!
 * Marco Heinemann (`@ubmarco <https://github.com/ubmarco>`_)
 * Christian Drabek (`@cdrabek <https://github.com/cdrabek>`_)
 * Dan Yeaw (`@danyeaw <https://github.com/danyeaw>`_)
+* Arkadiusz Michał Ryś (`@arrys <https://github.com/arrys>`_)