diff --git a/internal/configs/node/config.go b/internal/configs/node/config.go
index 962507872..10c6ffc26 100644
--- a/internal/configs/node/config.go
+++ b/internal/configs/node/config.go
@@ -69,8 +69,8 @@ type ConfigType struct {
 	isBeacon bool        // whether this node is beacon node doing consensus or not
 	ShardID  uint32      // ShardID of this node
 	role     Role        // Role of the node
-	Port     string
-	IP       string
+	Port     string      // Port of the node.
+	IP       string      // IP of the node.
 
 	StringRole      string
 	Host            p2p.Host