diff --git a/src/main/java/messagerosa/core/model/XMessage.java b/src/main/java/messagerosa/core/model/XMessage.java
index 3f36388..af83d9a 100644
--- a/src/main/java/messagerosa/core/model/XMessage.java
+++ b/src/main/java/messagerosa/core/model/XMessage.java
@@ -52,6 +52,8 @@ public enum MessageType {
 
 	private String ownerId;
 
+	private UUID botId;
+
 	//Persist
 	private String app;