diff --git a/readme.md b/readme.md
index ddfb4b3a..fefaf64f 100644
--- a/readme.md
+++ b/readme.md
@@ -189,9 +189,11 @@ Check that `value` is marked a [`@deprecated`](https://jsdoc.app/tags-deprecated
 
 Check that `value` is not marked a [`@deprecated`](https://jsdoc.app/tags-deprecated.html).
 
-### expectNever<T>(value)
+### expectNever(expression: never)
 
-Check that the type of `value` is `never` and also returns `never` (useful for checking all branches are covered).
+Asserts that the type and return type of `expression` is `never`.
+
+Useful for checking that all branches are covered.
 
 ### printType(value)