diff --git a/src/main/java/com/fr/plugin/db/es/fun/ElasticsearchTableData.java b/src/main/java/com/fr/plugin/db/es/fun/ElasticsearchTableData.java
index 76922cd..39d6c54 100644
--- a/src/main/java/com/fr/plugin/db/es/fun/ElasticsearchTableData.java
+++ b/src/main/java/com/fr/plugin/db/es/fun/ElasticsearchTableData.java
@@ -30,7 +30,9 @@ import java.util.Collection;
  */
 @EnableMetrics
 public class ElasticsearchTableData extends BaseTableData {
-
+    
+    private static final long serialVersionUID = 5373061015617017920L;
+    
     @Identifier("database")
     private Conf<Connection> database = HolderKit.obj(null, Connection.class);
     @Identifier("endPoint")