diff --git a/bgpd/bgp_debug.h b/bgpd/bgp_debug.h
index 42cbd7e..253bd7f 100644
--- a/bgpd/bgp_debug.h
+++ b/bgpd/bgp_debug.h
@@ -68,6 +68,7 @@
 extern unsigned long conf_bgp_debug_normal;
 extern unsigned long conf_bgp_debug_zebra;
 extern unsigned long conf_bgp_debug_allow_martians;
+extern unsigned long conf_bgp_debug_nht;
 
 extern unsigned long term_bgp_debug_as4;
 extern unsigned long term_bgp_debug_fsm;
@@ -79,6 +80,7 @@
 extern unsigned long term_bgp_debug_normal;
 extern unsigned long term_bgp_debug_zebra;
 extern unsigned long term_bgp_debug_allow_martians;
+extern unsigned long term_bgp_debug_nht;
 
 #define BGP_DEBUG_AS4                 0x01
 #define BGP_DEBUG_AS4_SEGMENT         0x02
@@ -93,6 +95,7 @@
 #define BGP_DEBUG_NORMAL              0x01
 #define BGP_DEBUG_ZEBRA               0x01
 #define BGP_DEBUG_ALLOW_MARTIANS      0x01
+#define BGP_DEBUG_NHT                 0x01
 
 #define BGP_DEBUG_PACKET_SEND         0x01
 #define BGP_DEBUG_PACKET_SEND_DETAIL  0x02