diff --git a/README.md b/README.md
index 4842c84..a60c6e0 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,10 @@ fn valid_decimal_number s -> Regex.match? @valid_decimal_number_regex s
 
 **TODO: Add more description**
 
+**NOTE**: This doesn't work at all. I'm still figuring out how to even go about
+creating an AST and converting that into valid Elixir code. This will probably
+never happen.
+
 ## Development Resources
 
 + https://pl-rants.net/posts/leex-yecc-in-elixir/