diff --git a/README.md b/README.md
index d8ee1f8..ffa0d09 100644
--- a/README.md
+++ b/README.md
@@ -49,3 +49,4 @@ script for the Lua executable that has appropriate `LUA_PATH` and
 [ ] hook up system to session bus, to handle incoming calls
 [ ] kiwmi: support reloading config or otherwise making live changes
 [ ] why are overlay windows overlapping regular view?
+[ ] screen lock