diff --git a/src/union.js b/src/union.js
index ef14b22..03a52b0 100644
--- a/src/union.js
+++ b/src/union.js
@@ -66,11 +66,6 @@ const Variant = (type, variant) => (...values) => ({
   }
 })
 
-/**
- * @template {object} T
- * @typedef {T[keyof T]} Tuple
- */
-
 /**
  * @template T, U
  * @this {Union<T, U>}