diff --git a/config.org b/config.org
index dae78ac..125ab96 100644
--- a/config.org
+++ b/config.org
@@ -1094,6 +1094,16 @@
    leave it at that for now as I'm not sure precisely what behaviour
    I'd want.
 
+   Magit also doesn't seem to provide a means of specifying the =-S=
+   flag for commit signing (only =--gpg-sign==) so I need to add that:
+
+   #+begin_src emacs-lisp
+     (eval-after-load 'magit
+       '(progn
+     	 (transient-append-suffix 'magit-commit "-C"
+     	   '("-S" "Sign commit" "-S"))))
+   #+end_src
+
 ** Docker
    I use docker quite a lot, unfortunately, so it's nice to be able to
    spawn containers etc from Emacs. The =docker= package provides a