diff --git a/README.org b/README.org
index b37d5ea..ea5f3c5 100644
--- a/README.org
+++ b/README.org
@@ -1498,6 +1498,7 @@ Configure email with iCalendar event support, to integrate with
                                  ((executable-find "flake8" t) '("flake8" "--max-line-length" "88" "-"))
                                  (t '("pyflakes")))))))
   :custom
+  (python-interpreter "python3")
   (python-shell-interpreter "python3")
   (python-shell-dedicated nil)
   (python-shell-completion-native-enable nil)