diff --git a/doc/TODO b/doc/TODO
index 076e822a33a..f0e408151ca 100644
--- a/doc/TODO
+++ b/doc/TODO
@@ -12,6 +12,7 @@ Packages:
  * Create /etc/issue.
  * Create files in /etc/skel for new users.
  * Add a trigger for fc-cache.
+ * Add a trigger to (un)register users/groups.
  
 xbps-bin:
  * Add support to handle conf_files and keep_dirs from package metadata.