diff --git a/isisd/isis_circuit.h b/isisd/isis_circuit.h
index a7e719f..f32d1dd 100644
--- a/isisd/isis_circuit.h
+++ b/isisd/isis_circuit.h
@@ -65,6 +65,7 @@
 struct isis_circuit
 {
   int state;
+  int connected;
   u_char circuit_id;		/* l1/l2 p2p/bcast CircuitID */
   struct isis_area *area;	/* back pointer to the area */
   struct interface *interface;	/* interface info from z */