diff --git a/test/unit/apheleia-unit-test.el b/test/unit/apheleia-unit-test.el
index da49005..80e2093 100644
--- a/test/unit/apheleia-unit-test.el
+++ b/test/unit/apheleia-unit-test.el
@@ -1,6 +1,6 @@
 ;; -*- lexical-binding: t -*-
 
-;; `apheleia-unit-tests' - unit tests using ERT.
+;; `apheleia-unit-tests' - unit tests using Buttercup.
 
 (require 'apheleia)