1 files changed, 5 insertions, 3 deletions
diff --git a/libcxx/test/re/re.traits/default.pass.cpp b/libcxx/test/re/re.traits/default.pass.cpp
index f486a717db1..babc1c5412e 100644
--- a/libcxx/test/re/re.traits/default.pass.cpp
+++ b/libcxx/test/re/re.traits/default.pass.cpp
@@ -17,6 +17,8 @@
 #include <regex>
 #include <cassert>
 
+#include "../../platform_support.h" // locale name macros
+
 int main()
 {
     {
@@ -26,10 +28,10 @@ int main()
         assert(t2.getloc().name() == "C");
     }
     {
-        std::locale::global(std::locale("en_US.UTF-8"));
+        std::locale::global(std::locale(LOCALE_en_US_UTF_8));
         std::regex_traits<char> t1;
-        assert(t1.getloc().name() == "en_US.UTF-8");
+        assert(t1.getloc().name() == LOCALE_en_US_UTF_8);
         std::regex_traits<wchar_t> t2;
-        assert(t2.getloc().name() == "en_US.UTF-8");
+        assert(t2.getloc().name() == LOCALE_en_US_UTF_8);
     }
 }