diff --git a/astlpc.c b/astlpc.c
index d8129d1..0cfd856 100644
--- a/astlpc.c
+++ b/astlpc.c
@@ -95,7 +95,7 @@
 
 /* Support testing of new binding protocols */
 #ifndef ASTLPC_VER_CUR
-#define ASTLPC_VER_CUR	1
+#define ASTLPC_VER_CUR	2
 #endif
 
 #define ASTLPC_PACKET_SIZE(sz)	(4 + (sz))