--- a/src/luaconf.h
+++ b/src/luaconf.h
@@ -54,7 +54,7 @@
#if defined(LUA_USE_WINDOWS)
#define LUA_DL_DLL /* enable support for DLL */
-#define LUA_USE_C89 /* broadly, Windows is C89 */
+//#define LUA_USE_C89 /* broadly, Windows is C89 */
#endif