diff --git a/init.el b/init.el
index b88d467..605af1c 100644
--- a/init.el
+++ b/init.el
@@ -78,6 +78,7 @@
     "fm" #'bookmark-set
     "ft" #'treemacs
     "fs" #'evil-write
+    "fu" #'my-sudo-edit
     "f'" #'bookmark-jump
     "gg" #'magit-status
     "mm" #'minimap-mode
@@ -506,6 +507,13 @@
 
 (add-to-list 'after-make-frame-functions #'frame-make-detect-term)
 
+(defun my-sudo-edit ()
+  "Edit current file as root."
+  (interactive)
+  (unless (and buffer-file-name
+               (file-writable-p buffer-file-name))
+    (find-alternate-file (concat "/sudo:root@localhost:" buffer-file-name))))
+
 (add-to-list 'auto-mode-alist '("\\.yuck\\'" . lisp-mode))
 (add-to-list 'auto-mode-alist '("flake\\.lock\\'" . js-json-mode))