diff --git a/graph/db/graph_test.go b/graph/db/graph_test.go
index b9d972b3b..2662d60c1 100644
--- a/graph/db/graph_test.go
+++ b/graph/db/graph_test.go
@@ -39,7 +39,10 @@ var (
 		"[2001:db8:85a3:0:0:8a2e:370:7334]:80")
 	testAddrs      = []net.Addr{testAddr, anotherAddr}
 	testOpaqueAddr = &lnwire.OpaqueAddrs{
-		Payload: []byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06},
+		// NOTE: the first byte is a protocol level address type. So
+		// for we set it to 0xff to guarantee that we do not know this
+		// type yet.
+		Payload: []byte{0xff, 0x02, 0x03, 0x04, 0x05, 0x06},
 	}
 
 	testRBytes, _ = hex.DecodeString("8ce2bc69281ce27da07e6683571319d18" +