diff --git a/emacs/.emacs.d/init.el b/emacs/.emacs.d/init.el
index 69f8206..86a5e55 100644
--- a/emacs/.emacs.d/init.el
+++ b/emacs/.emacs.d/init.el
@@ -668,6 +668,9 @@ MODE1 is enabled and vice-versa."
 ;; Bind tagedit-specific keys
 (add-hook 'tagedit-mode-hook 'oni:set-keys-for-tagedit)
 
+;; Update diff-hl when magit changes something.
+(add-hook 'magit-post-refresh-hook 'diff-hl-magit-post-refresh t)
+
 (oni:add-hooks 'texinfo-mode-hook
   #'outline-minor-mode)