diff --git a/TODO.md b/TODO.md
index 99401bc..6c39ee1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -68,6 +68,7 @@
  - Config file and compile options, remove all those consts.
  - Engine flares shouldn't be centered
  - Sprite optimization: do we need to allocate a new `Vec` every frame? Probably not.
+ - Better error when run outside of directory
 
 ## Content
  - Angled engines