diff --git a/TODO.md b/TODO.md
index 78f5a07..c8ef5e1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,3 +2,4 @@
 
 - cycle through definition types with left/right arrow (noun, verb, adj, etc.)
 - include wordnet metadata (synonym and antonym lists)
+- rewrite `cmd.pl` in lua