diff --git a/notes/todo.md b/notes/todo.md
index 7c83be8..c421eb9 100644
--- a/notes/todo.md
+++ b/notes/todo.md
@@ -31,6 +31,7 @@
 - [ ] Write some more complex test programs
     - [ ] Display (hex) numbers
     - [ ] Greater than
+    - [ ] Minimal LOGO-ish interpreter for turtle graphics
 
 ## Run-scripts