diff --git a/todo.txt b/todo.txt
index bf734a842..1a3818e0d 100644
--- a/todo.txt
+++ b/todo.txt
@@ -47,5 +47,7 @@ TODO, which will get actually done
 
 - OpenTTD: tap anywhere to close popup menu.
 
+- OpenTTD: Ctrl key does not work when using physical keyboard.
+
 - Add glshim library: https://github.com/lunixbochs/glshim