diff --git a/README.md b/README.md
index 9eee45e..7fa448e 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,6 @@ The aim is to build unit testcases from selected failure classes and slowly get
 ## Todo
 
 * [x] use [Unicode® Standard Annex #31](https://www.unicode.org/reports/tr31/) (augmented with '-') for identifiers
-  * allow starting '_' also, not to spec but terraform allows it
 * [ ] add [template expressions](https://github.com/hashicorp/hcl/blob/main/hclsyntax/spec.md#template-expressions)
   * [x] add quoted templates
     * [x] add quoted template interpolations