diff --git a/doc/todo/addurl_should_fail_when_youtube-dl_disabled.mdwn b/doc/todo/addurl_should_fail_when_youtube-dl_disabled.mdwn
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+When using addurl on an url that youtube-dl supports, if it's installed but
+not enabled to be used due to the recent security fix, git-annex will
+download the web page and add it, which is unlikely to be desired behavior.
+Instead, it should check if youtube-dl supports the page, and then error
+out at the download stage, with a message that points at how to enable it.