diff --git a/README.rst b/README.rst
index 99828f8..f1c60ee 100644
--- a/README.rst
+++ b/README.rst
@@ -86,3 +86,6 @@ These people are responsible for Py65:
 
 - `Alessandro Gatti <https://github.com/agatti>`_ added support for
   breakpoints in the monitor.
+
+- `Mario Keller <https://github.com/mkeller0815>`_ added support for
+  configuring ``getc``/``putc`` and fixed bugs in command line option parsing.