diff --git a/global.org b/global.org
index a61e12e..e4c3c46 100644
--- a/global.org
+++ b/global.org
@@ -475,6 +475,11 @@
     #+BEGIN_SRC emacs-lisp
       (setq org-agenda-span 1)
     #+END_SRC
+    Prevent headlines to be marked as DONE if some sub-headings are
+    still TODO.
+    #+BEGIN_SRC emacs-lisp
+      (setq org-enforce-todo-dependencies t)
+    #+END_SRC
     Do not show scheduled or deadline'd stuff in the Global TODO list
     #+BEGIN_SRC emacs-lisp
       (setq org-agenda-todo-ignore-deadlines 'all)