diff --git a/lua.h b/lua.h
index 12d9e2ec..03d92c0b 100644
--- a/lua.h
+++ b/lua.h
@@ -18,9 +18,11 @@
 
 #define LUA_VERSION_MAJOR	"5"
 #define LUA_VERSION_MINOR	"4"
-#define LUA_VERSION_NUM		504
 #define LUA_VERSION_RELEASE	"0"
 
+#define LUA_VERSION_NUM			504
+#define LUA_VERSION_RELEASE_NUM		(LUA_VERSION_NUM * 100 + 0)
+
 #define LUA_VERSION	"Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
 #define LUA_RELEASE	LUA_VERSION "." LUA_VERSION_RELEASE
 #define LUA_COPYRIGHT	LUA_RELEASE "  Copyright (C) 1994-2018 Lua.org, PUC-Rio"