diff --git a/hugegraph-core/src/main/java/org/apache/hugegraph/masterelection/StandardStateMachineCallback.java b/hugegraph-core/src/main/java/org/apache/hugegraph/masterelection/StandardStateMachineCallback.java
index 88bec95b31..28e01d2913 100644
--- a/hugegraph-core/src/main/java/org/apache/hugegraph/masterelection/StandardStateMachineCallback.java
+++ b/hugegraph-core/src/main/java/org/apache/hugegraph/masterelection/StandardStateMachineCallback.java
@@ -33,7 +33,8 @@ public class StandardStateMachineCallback implements StateMachineCallback {
 
     private boolean isMaster = false;
 
-    public StandardStateMachineCallback(TaskManager taskManager, GlobalMasterInfo globalMasterInfo) {
+    public StandardStateMachineCallback(TaskManager taskManager, 
+                                        GlobalMasterInfo globalMasterInfo) {
         this.taskManager = taskManager;
         this.taskManager.enableRoleElected(true);
         this.globalMasterInfo = globalMasterInfo;