diff --git a/include/types/hlua.h b/include/types/hlua.h
index 6a78292..fb1796c 100644
--- a/include/types/hlua.h
+++ b/include/types/hlua.h
@@ -43,7 +43,8 @@
 #define HLUA_F_AS_STRING    0x01
 #define HLUA_F_MAY_USE_HTTP 0x02
 
-#define HLUA_TXN_NOTERM 0x00000001
+#define HLUA_TXN_NOTERM   0x00000001
+#define HLUA_TXN_HTTP_RDY 0x00000002 /* Set if the txn is HTTP ready for the defined direction */
 
 #define HLUA_CONCAT_BLOCSZ 2048