diff --git a/service/xboard/service.go b/service/xboard/service.go
index 9b19d19c..05b49970 100644
--- a/service/xboard/service.go
+++ b/service/xboard/service.go
@@ -590,6 +590,9 @@ func (s *Service) setupNode() error {
 	if inner.Flow == "" {
 		inner.Flow = config.Flow
 	}
+	if inner.Protocol == "" {
+		inner.Protocol = config.Protocol
+	}
 	if inner.Protocol == "" {
 		inner.Protocol = config.NodeType
 	}
@@ -631,6 +634,9 @@ func (s *Service) setupNode() error {
 
 	// Resolve protocol
 	protocol := inner.Protocol
+	if protocol == "" {
+		protocol = config.Protocol
+	}
 	if protocol == "" {
 		protocol = inner.NodeType
 	}