diff --git a/rskj-core/src/main/java/co/rsk/net/discovery/PeerExplorer.java b/rskj-core/src/main/java/co/rsk/net/discovery/PeerExplorer.java
index 9ed512b7708..30befdb4057 100644
--- a/rskj-core/src/main/java/co/rsk/net/discovery/PeerExplorer.java
+++ b/rskj-core/src/main/java/co/rsk/net/discovery/PeerExplorer.java
@@ -165,7 +165,7 @@ synchronized void handleMessage(DiscoveryEvent event) {
                 "type: [{}], " +
                 "networkId: [{}]",
                 state, event.getMessage().getMessageType(),
-                event.getMessage().getNetworkId().isPresent());
+                event.getMessage().getNetworkId());
 
         if (state != ExecState.RUNNING) {
             logger.warn("Cannot handle message as current state is {}", state);