diff --git a/include/mingw-compat/condition_variable b/include/mingw-compat/condition_variable
index 5ccf42c..256734c 100644
--- a/include/mingw-compat/condition_variable
+++ b/include/mingw-compat/condition_variable
@@ -18,3 +18,8 @@
 #pragma once
 #include_next <condition_variable>
 #include "mingw.condition_variable.h"
+
+#undef IN
+#undef OUT
+#undef far
+#undef near
diff --git a/include/mingw-compat/mutex b/include/mingw-compat/mutex
index bfc8b30..4571281 100644
--- a/include/mingw-compat/mutex
+++ b/include/mingw-compat/mutex
@@ -18,3 +18,8 @@
 #pragma once
 #include_next <mutex>
 #include "mingw.mutex.h"
+
+#undef IN
+#undef OUT
+#undef far
+#undef near
diff --git a/include/mingw-compat/thread b/include/mingw-compat/thread
index ae813a7..2d5cb43 100644
--- a/include/mingw-compat/thread
+++ b/include/mingw-compat/thread
@@ -18,3 +18,8 @@
 #pragma once
 #include_next <thread>
 #include "mingw.thread.h"
+
+#undef IN
+#undef OUT
+#undef far
+#undef near
diff --git a/include/rack.hpp b/include/rack.hpp
deleted file mode 100644
index eb80d43..0000000
--- a/include/rack.hpp
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * DISTRHO Cardinal Plugin
- * Copyright (C) 2021 Filipe Coelho <falktx@falktx.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 3 of
- * the License, or any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * For a full copy of the GNU General Public License see the LICENSE file.
- */
-
-#pragma once
-
-#include_next "rack.hpp"
-
-// If building for Windows, make sure to import the windows header now so we can undef some stuff
-#ifdef _WIN32
-# include <windows.h>
-# undef IN
-# undef OUT
-# undef VOID
-# undef far
-# undef near
-# define ABC ABC_
-# define Chord Chord_
-# define VOID VOID_
-#endif