diff --git a/TODO.md b/TODO.md
index 8e6509c..fb2c8e9 100644
--- a/TODO.md
+++ b/TODO.md
@@ -14,6 +14,7 @@
 - [X] Refactor all functions to take state as the final parameter
 - [X] Standardize the pattern matching parameter names, such as c1 : cs
 - [ ] Write unit/quickcheck tests for all of the instructions
+- [ ] Move utility functions to their own file
 
 ## PushGP TODO
 - [ ] Implement a Plushy genome translator