diff --git a/include/stdex/unicode.hpp b/include/stdex/unicode.hpp
index a85d31902..378b026fd 100644
--- a/include/stdex/unicode.hpp
+++ b/include/stdex/unicode.hpp
@@ -17,6 +17,9 @@ namespace stdex
 {
 	enum class charset_id {
 		default = 0,
+#ifdef _WIN32
+		utf8 = CP_UTF8,
+#endif
 	};
 
 	///