diff --git a/TODO.md b/TODO.md
index 4c572d9..043a2f3 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,6 +1,7 @@
 ### Todo
 
 - [ ] Add test suite
+- [ ] Add documentation (docstrings, etc.)
 - [ ] Validate JSON schema of Yomichan terms during export
 - [ ] Add factory classes to reduce the amount of class import statements
 - [ ] Add build scripts for producing program binaries