diff --git a/isisd/isis_circuit.h b/isisd/isis_circuit.h
index 343b492..9843ef3 100644
--- a/isisd/isis_circuit.h
+++ b/isisd/isis_circuit.h
@@ -180,4 +180,8 @@
 
 int  isis_circuit_metric_set (struct isis_circuit *circuit, int level, int metric);
 
+int  isis_circuit_passwd_unset (struct isis_circuit *circuit);
+int  isis_circuit_passwd_cleartext_set (struct isis_circuit *circuit, const char *passwd);
+int  isis_circuit_passwd_hmac_md5_set (struct isis_circuit *circuit, const char *passwd);
+
 #endif /* _ZEBRA_ISIS_CIRCUIT_H */