diff --git a/include/__refstring b/src/include/refstring.h
similarity index 97%
rename from include/__refstring
rename to src/include/refstring.h
index 7f417a03c..f0d5b4456 100644
--- a/include/__refstring
+++ b/src/include/refstring.h
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef _LIBCPP___REFSTRING
-#define _LIBCPP___REFSTRING
+#ifndef _LIBCPP_REFSTRING_H
+#define _LIBCPP_REFSTRING_H
 
 #include <__config>
 #include <stdexcept>
@@ -124,4 +124,4 @@ bool __libcpp_refstring::__uses_refcount() const {
 
 _LIBCPP_END_NAMESPACE_STD
 
-#endif //_LIBCPP___REFSTRING
+#endif //_LIBCPP_REFSTRING_H
diff --git a/src/stdexcept.cpp b/src/stdexcept.cpp
index 3f333309d..5e06e521e 100644
--- a/src/stdexcept.cpp
+++ b/src/stdexcept.cpp
@@ -11,7 +11,7 @@
 #include "new"
 #include "string"
 #include "system_error"
-#include "__refstring"
+#include "include/refstring.h"
 
 /* For _LIBCPPABI_VERSION */
 #if !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) && \