diff --git a/test/lightweight_test_bool.cpp b/test/lightweight_test_bool.cpp
index e058ce7..bb17871 100644
--- a/test/lightweight_test_bool.cpp
+++ b/test/lightweight_test_bool.cpp
@@ -1,13 +1,9 @@
-// Copyright 2014, 2020 Peter Dimov
+// Copyright 2020 Peter Dimov
 // Distributed under the Boost Software License, Version 1.0.
 // https://www.boost.org/LICENSE_1_0.txt
 
-#include <vector>
 #include <boost/core/lightweight_test.hpp>
-
-struct X
-{
-};
+#include <vector>
 
 int main()
 {