diff --git a/test/system_error_test.cpp b/test/system_error_test.cpp
index 32bd04e..bb93ca5 100644
--- a/test/system_error_test.cpp
+++ b/test/system_error_test.cpp
@@ -37,7 +37,7 @@ namespace
     BOOST_TEST( ex.code().category() == system_category() );
 # ifdef BOOST_WINDOWS_API
     LANGID language_id;
-#   if !defined(__MINGW32__) && !defined(__CYGWIN__) && !BOOST_PLAT_WINDOWS_RUNTIME
+#   if !BOOST_PLAT_WINDOWS_RUNTIME
       language_id = ::GetUserDefaultUILanguage();
 #   else
       language_id = 0x0409; // Assume US English