1 files changed, 2 insertions, 0 deletions

diff --git a/lua.h b/lua.h
index 1ddacf33..ed779771 100644
--- a/lua.h
+++ b/lua.h
@@ -244,6 +244,8 @@ LUA_API int   lua_getweakmode (lua_State *L, int index);
 
 LUA_API void lua_pushupvalues (lua_State *L);
 
+#define lua_isnull      lua_isnone
+
 
 /* compatibility with ref system */