diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,3 +1,13 @@
 # arduino-timetable
 
-Module to send commands to an Arduino based on a time table.
\ No newline at end of file
+Module to send commands to an Arduino based on a time table.
+
+
+### Regarding Pyinstaller
+
+As of September 2017 the Pyinstaller version on PyPi is not ready for
+Python 3.6, the developementversion is needed:
+
+~~~
+pip install https://github.com/pyinstaller/pyinstaller/tarball/develop
+~~~