I added the following to my <code>.emacs</code>. The hook is to convert tabs to spaces to avoid unpleasant surprises with code blocks. For source to ska-untabify see the <a href="http://www.emacswiki.org/cgi-bin/wiki/UntabifyUponSave">EmacsWiki</a> <pre> (autoload 'markdown-mode "markdown-mode") (add-to-list 'auto-mode-alist '("\\.mdwn" . markdown-mode)) (add-hook 'markdown-mode-hook '(lambda () (make-local-hook 'write-contents-hooks) (add-hook 'write-contents-hooks 'ska-untabify nil t))) </pre> ;; [[DavidBremner]]