diff --git a/global.org b/global.org
index 0f6b1bb..e9e6167 100644
--- a/global.org
+++ b/global.org
@@ -717,8 +717,14 @@
      (require 'org-mu4e)
      ;;store link to message if in header view, not to header query
      (setq mu4e-org-link-query-in-headers-mode nil)
+   #+end_src
+
+   This is supposed to make the calendar invitation buttons work.
+   #+begin_src emacs-lisp
+     (require 'mu4e-icalendar)
+     (mu4e-icalendar-setup)
+   #+end_src
 
-      #+end_src
 ** org-mode
 *** Require
     Require the ~org~ package; I also occasionally use org-pomodoro