diff --git a/bgpd/bgpd.h b/bgpd/bgpd.h
index a6c11ff..a0cf7e8 100644
--- a/bgpd/bgpd.h
+++ b/bgpd/bgpd.h
@@ -101,6 +101,7 @@
 #define BGP_FLAG_NO_FAST_EXT_FAILOVER     (1 << 10)
 #define BGP_FLAG_LOG_NEIGHBOR_CHANGES     (1 << 11)
 #define BGP_FLAG_GRACEFUL_RESTART         (1 << 12)
+#define BGP_FLAG_ASPATH_CONFED            (1 << 13)
 
   /* BGP Per AF flags */
   u_int16_t af_flags[AFI_MAX][SAFI_MAX];