diff --git a/TODO b/TODO
index 587dd5956e236fa7b2729773ed607c4e311fdcb6..11f19bff6f6901240a263e114fedfb201e45679c 100644
--- a/TODO
+++ b/TODO
@@ -20,6 +20,7 @@
  * Implement NET_WM_PING and NET_WM_PID/WM_CLIENT_MACHINE (?)
    - http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html#KILLINGWINDOWS
  * Add a timeout parameter for SDL_WaitEvent() (?)
+   - http://lists.libsdl.org/pipermail/sdl-libsdl.org/2008-May/thread.html#65067
  * Implement key repeat at the driver level
  * Add name -> keysym and name -> scancode lookup functions