diff --git a/flang/runtime/freestanding-tools.h b/flang/include/flang/Runtime/freestanding-tools.h
similarity index 98%
rename from flang/runtime/freestanding-tools.h
rename to flang/include/flang/Runtime/freestanding-tools.h
index 9089dc6bcf53e..7f8d37d87e0e6 100644
--- a/flang/runtime/freestanding-tools.h
+++ b/flang/include/flang/Runtime/freestanding-tools.h
@@ -1,4 +1,4 @@
-//===-- runtime/freestanding-tools.h ----------------------------*- C++ -*-===//
+//===-- include/flang/Runtime/freestanding-tools.h --------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
diff --git a/flang/runtime/buffer.h b/flang/runtime/buffer.h
index ca1baea12efaf..41a1abb1b2d90 100644
--- a/flang/runtime/buffer.h
+++ b/flang/runtime/buffer.h
@@ -11,8 +11,8 @@
 #ifndef FORTRAN_RUNTIME_BUFFER_H_
 #define FORTRAN_RUNTIME_BUFFER_H_
 
-#include "freestanding-tools.h"
 #include "io-error.h"
+#include "flang/Runtime/freestanding-tools.h"
 #include "flang/Runtime/memory.h"
 #include <algorithm>
 #include <cinttypes>
diff --git a/flang/runtime/descriptor-io.cpp b/flang/runtime/descriptor-io.cpp
index 93df51cf22d3f..380ad425d925f 100644
--- a/flang/runtime/descriptor-io.cpp
+++ b/flang/runtime/descriptor-io.cpp
@@ -7,8 +7,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "descriptor-io.h"
-#include "freestanding-tools.h"
 #include "flang/Common/restorer.h"
+#include "flang/Runtime/freestanding-tools.h"
 
 namespace Fortran::runtime::io::descr {
 RT_OFFLOAD_API_GROUP_BEGIN
diff --git a/flang/runtime/edit-input.cpp b/flang/runtime/edit-input.cpp
index 935b7c299b256..37989bbcee0ab 100644
--- a/flang/runtime/edit-input.cpp
+++ b/flang/runtime/edit-input.cpp
@@ -7,12 +7,12 @@
 //===----------------------------------------------------------------------===//
 
 #include "edit-input.h"
-#include "freestanding-tools.h"
 #include "namelist.h"
 #include "utf.h"
 #include "flang/Common/optional.h"
 #include "flang/Common/real.h"
 #include "flang/Common/uint128.h"
+#include "flang/Runtime/freestanding-tools.h"
 #include <algorithm>
 #include <cfenv>
 
diff --git a/flang/runtime/format.h b/flang/runtime/format.h
index f57cf92044871..5329f2482d3e4 100644
--- a/flang/runtime/format.h
+++ b/flang/runtime/format.h
@@ -12,11 +12,11 @@
 #define FORTRAN_RUNTIME_FORMAT_H_
 
 #include "environment.h"
-#include "freestanding-tools.h"
 #include "io-error.h"
 #include "flang/Common/Fortran.h"
 #include "flang/Common/optional.h"
 #include "flang/Decimal/decimal.h"
+#include "flang/Runtime/freestanding-tools.h"
 #include <cinttypes>
 
 namespace Fortran::runtime {
diff --git a/flang/runtime/internal-unit.cpp b/flang/runtime/internal-unit.cpp
index 35766306ccefb..4097ea659edd4 100644
--- a/flang/runtime/internal-unit.cpp
+++ b/flang/runtime/internal-unit.cpp
@@ -7,9 +7,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "internal-unit.h"
-#include "freestanding-tools.h"
 #include "io-error.h"
 #include "flang/Runtime/descriptor.h"
+#include "flang/Runtime/freestanding-tools.h"
 #include <algorithm>
 #include <type_traits>
 
diff --git a/flang/runtime/memory.cpp b/flang/runtime/memory.cpp
index de6c4c72fdac1..c7068ad6479a1 100644
--- a/flang/runtime/memory.cpp
+++ b/flang/runtime/memory.cpp
@@ -7,9 +7,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "flang/Runtime/memory.h"
-#include "freestanding-tools.h"
 #include "terminator.h"
 #include "tools.h"
+#include "flang/Runtime/freestanding-tools.h"
 #include <cstdlib>
 
 namespace Fortran::runtime {
diff --git a/flang/runtime/tools.h b/flang/runtime/tools.h
index 5d7d99c08179d..52049c511f13e 100644
--- a/flang/runtime/tools.h
+++ b/flang/runtime/tools.h
@@ -9,12 +9,12 @@
 #ifndef FORTRAN_RUNTIME_TOOLS_H_
 #define FORTRAN_RUNTIME_TOOLS_H_
 
-#include "freestanding-tools.h"
 #include "stat.h"
 #include "terminator.h"
 #include "flang/Common/optional.h"
 #include "flang/Runtime/cpp-type.h"
 #include "flang/Runtime/descriptor.h"
+#include "flang/Runtime/freestanding-tools.h"
 #include "flang/Runtime/memory.h"
 #include <cstring>
 #include <functional>