diff --git a/mode/core/src/main/java/org/apache/shardingsphere/mode/persist/service/ListenerAssistedPersistService.java b/mode/core/src/main/java/org/apache/shardingsphere/mode/persist/service/ListenerAssistedPersistService.java
index de20c0f187f7a..9103165fe3454 100644
--- a/mode/core/src/main/java/org/apache/shardingsphere/mode/persist/service/ListenerAssistedPersistService.java
+++ b/mode/core/src/main/java/org/apache/shardingsphere/mode/persist/service/ListenerAssistedPersistService.java
@@ -32,7 +32,7 @@ public final class ListenerAssistedPersistService {
     
     /**
      * Persist database name listener assisted.
-     * 
+     *
      * @param databaseName database name
      * @param listenerAssistedType listener assisted type
      */