diff --git a/doc/TODO b/doc/TODO
index fcaae6b2b09..a7bcc0aa03d 100644
--- a/doc/TODO
+++ b/doc/TODO
@@ -27,6 +27,8 @@ xbps-bin:
  * Add support to update packages.
  * While installing a package, check if version that is going to be
    installed is already installed.
+ * While removing a package, abort if pkg is required by others
+   (looking at its requiredby array object).
 
 xbps-repo:
  * Replace binpkg-genindex.sh with a target for xbps-repo to generate the