diff --git a/src/catch2/catch_all.hpp b/src/catch2/catch_all.hpp
index 57159955..375e06a2 100644
--- a/src/catch2/catch_all.hpp
+++ b/src/catch2/catch_all.hpp
@@ -72,6 +72,7 @@
 #include <catch2/internal/catch_fatal_condition_handler.hpp>
 #include <catch2/internal/catch_floating_point_helpers.hpp>
 #include <catch2/internal/catch_getenv.hpp>
+#include <catch2/internal/catch_global_lock.hpp>
 #include <catch2/internal/catch_is_permutation.hpp>
 #include <catch2/internal/catch_istream.hpp>
 #include <catch2/internal/catch_jsonwriter.hpp>
diff --git a/src/catch2/internal/catch_global_lock.hpp b/src/catch2/internal/catch_global_lock.hpp
index 0408f33f..77971056 100644
--- a/src/catch2/internal/catch_global_lock.hpp
+++ b/src/catch2/internal/catch_global_lock.hpp
@@ -1,3 +1,4 @@
+
 //              Copyright Catch2 Authors
 // Distributed under the Boost Software License, Version 1.0.
 //   (See accompanying file LICENSE.txt or copy at
diff --git a/tests/ExtraTests/X37-Multithreading.cpp b/tests/ExtraTests/X37-Multithreading.cpp
index 30a238ab..e84f2bf1 100644
--- a/tests/ExtraTests/X37-Multithreading.cpp
+++ b/tests/ExtraTests/X37-Multithreading.cpp
@@ -1,3 +1,4 @@
+
 //              Copyright Catch2 Authors
 // Distributed under the Boost Software License, Version 1.0.
 //   (See accompanying file LICENSE.txt or copy at