diff --git a/README.md b/README.md
index b2242c0..958ecb3 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,4 @@ TODO
 * [ ] Garbage collector
 * [ ] Tail recursion (in C functions too)
 * [ ] Fix procedures on infinite data structs
+* [ ] Unicode