diff --git a/config.org b/config.org
index cfd004f..b254af2 100644
--- a/config.org
+++ b/config.org
@@ -142,6 +142,17 @@ It’s 2022.
   (setq python-shell-interpreter "python3")
 #+END_SRC
 
+Make new directories automatically (from [[https://emacsredux.com/blog/2022/06/12/auto-create-missing-directories/][Emacs Redux]]).
+
+#+BEGIN_SRC emacs-lisp
+  (defun er-auto-create-missing-dirs ()
+    (let ((target-dir (file-name-directory buffer-file-name)))
+      (unless (file-exists-p target-dir)
+        (make-directory target-dir t))))
+
+  (add-to-list 'find-file-not-found-functions #'er-auto-create-missing-dirs)
+#+END_SRC
+
 ** OS-specific stuff
 
 On Linux, I have to tell Emacs to use Chrome for web links.