diff --git a/include/threading_support.h b/include/threading_support.h
deleted file mode 100644
index 3e533f9..0000000
--- a/include/threading_support.h
+++ /dev/null
@@ -1,14 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-#ifndef _LIBCXXABI_THREADING_SUPPORT_H
-#define _LIBCXXABI_THREADING_SUPPORT_H
-
-#pragma GCC system_header
-#include <__threading_support>
-
-#endif // _LIBCXXABI_THREADING_SUPPORT_H
diff --git a/src/cxa_exception_storage.cpp b/src/cxa_exception_storage.cpp
index ce44c3a..3a3233a 100644
--- a/src/cxa_exception_storage.cpp
+++ b/src/cxa_exception_storage.cpp
@@ -12,7 +12,7 @@
 
 #include "cxa_exception.h"
 
-#include "threading_support.h"
+#include <__threading_support>
 
 #if defined(_LIBCXXABI_HAS_NO_THREADS)
 
diff --git a/src/cxa_guard_impl.h b/src/cxa_guard_impl.h
index b3c3202..72940cc 100644
--- a/src/cxa_guard_impl.h
+++ b/src/cxa_guard_impl.h
@@ -56,7 +56,7 @@
 
 #include <limits.h>
 #include <stdlib.h>
-#include "threading_support.h"
+#include <__threading_support>
 #ifndef _LIBCXXABI_HAS_NO_THREADS
 #  if defined(__ELF__) && defined(_LIBCXXABI_LINK_PTHREAD_LIB)
 #    pragma comment(lib, "pthread")
diff --git a/src/cxa_thread_atexit.cpp b/src/cxa_thread_atexit.cpp
index 1a04ddd..665f9e5 100644
--- a/src/cxa_thread_atexit.cpp
+++ b/src/cxa_thread_atexit.cpp
@@ -8,7 +8,7 @@
 
 #include "abort_message.h"
 #include "cxxabi.h"
-#include "threading_support.h"
+#include <__threading_support>
 #ifndef _LIBCXXABI_HAS_NO_THREADS
 #if defined(__ELF__) && defined(_LIBCXXABI_LINK_PTHREAD_LIB)
 #pragma comment(lib, "pthread")
diff --git a/src/fallback_malloc.cpp b/src/fallback_malloc.cpp
index 9db431e..1d6c380 100644
--- a/src/fallback_malloc.cpp
+++ b/src/fallback_malloc.cpp
@@ -8,7 +8,7 @@
 
 #include "fallback_malloc.h"
 
-#include "threading_support.h"
+#include <__threading_support>
 #ifndef _LIBCXXABI_HAS_NO_THREADS
 #if defined(__ELF__) && defined(_LIBCXXABI_LINK_PTHREAD_LIB)
 #pragma comment(lib, "pthread")
diff --git a/test/test_exception_storage.pass.cpp b/test/test_exception_storage.pass.cpp
index 4f1121b..934cc4b 100644
--- a/test/test_exception_storage.pass.cpp
+++ b/test/test_exception_storage.pass.cpp
@@ -9,7 +9,7 @@
 #include <algorithm>
 #include <cstdio>
 #include <cstdlib>
-#include "threading_support.h"
+#include <__threading_support>
 #include <unistd.h>
 
 #include "../src/cxa_exception.h"
diff --git a/test/test_fallback_malloc.pass.cpp b/test/test_fallback_malloc.pass.cpp
index 886b9a5..cc59129 100644
--- a/test/test_fallback_malloc.pass.cpp
+++ b/test/test_fallback_malloc.pass.cpp
@@ -9,7 +9,7 @@
 #include <cstdio>
 #include <deque>
 
-#include "threading_support.h"
+#include <__threading_support>
 
 typedef std::deque<void *> container;