diff --git a/configuration.org b/configuration.org
index ede0c95..2c82edb 100644
--- a/configuration.org
+++ b/configuration.org
@@ -2703,7 +2703,9 @@ Great help during refactoring.
 ** ~hl-todo~ to highlight TODO comments
 
 #+begin_src emacs-lisp
-(use-package hl-todo)
+(use-package hl-todo
+  :hook
+  (prog-mode . hl-todo-mode))
 #+end_src
 
 ** ~bug-reference~ to turn bug/patch references to links