diff --git a/doc/todo/git-annex_proxies.mdwn b/doc/todo/git-annex_proxies.mdwn
index ec8004cf1c..18883e516b 100644
--- a/doc/todo/git-annex_proxies.mdwn
+++ b/doc/todo/git-annex_proxies.mdwn
@@ -30,8 +30,6 @@ Planned schedule of work:
 
 * Currently working in [[todo/proving_preferred_content_behavior]]
 
-* sim: Test concurrency over actions.
-
 * sim: implement addtree
 
 * sim: May need to use LiveUpdate to make size balanced preferred content