diff --git a/test/config_info.cpp b/test/config_info.cpp
index 65b7a875..178d6fb0 100644
--- a/test/config_info.cpp
+++ b/test/config_info.cpp
@@ -153,6 +153,7 @@ void print_compiler_macros()
   PRINT_MACRO(_MSC_EXTENSIONS);
   PRINT_MACRO(_MSC_VER);
   PRINT_MACRO(_MSC_FULL_VER);
+  PRINT_MACRO(_MSVC_LANG);
   PRINT_MACRO(_MT);
   PRINT_MACRO(_NATIVE_WCHAR_T_DEFINED);
   // GNUC options: