diff --git a/p2p/server_nat_test.go b/p2p/server_nat_test.go
index cbb1f37e0a..7e19387210 100644
--- a/p2p/server_nat_test.go
+++ b/p2p/server_nat_test.go
@@ -36,6 +36,7 @@ func TestServerPortMapping(t *testing.T) {
 			PrivateKey: newkey(),
 			NoDial:     true,
 			ListenAddr: ":0",
+			DiscAddr:   ":0",
 			NAT:        mockNAT,
 			Logger:     testlog.Logger(t, log.LvlTrace),
 			clock:      clock,