diff --git a/src/main/java/dslab/Message.java b/src/main/java/dslab/Message.java
index 6269e89..fa6321e 100644
--- a/src/main/java/dslab/Message.java
+++ b/src/main/java/dslab/Message.java
@@ -10,16 +10,18 @@ public class Message {
     private Email from;
     private String subject = "";
     private String data = "";
+    private String hash = "";
     private Integer id;
 
     public Message() {
     }
 
-    public Message(ArrayList<Email> to, Email from, String subject, String data) {
+    public Message(ArrayList<Email> to, Email from, String subject, String data, String hash) {
         this.to = to;
         this.from = from;
         this.subject = subject;
         this.data = data;
+        this.hash = hash;
     }
 
     public void allFieldsSet() throws MissingInputException {
@@ -79,6 +81,14 @@ public class Message {
         this.id = id;
     }
 
+    public String getHash() {
+        return hash;
+    }
+
+    public void setHash(String hash) {
+        this.hash = hash;
+    }
+
     public String listMessage() {
         return getId() + " " + getFrom() + " " + getSubject();
     }
@@ -88,6 +98,7 @@ public class Message {
         return "from " + getFrom().toString() + "\n" +
                 "to " + printTo() + "\n" +
                 "subject " + getSubject() + "\n" +
-                "data " + getData() + "\n";
+                "data " + getData() + "\n" +
+                "hash " + getHash() + "\n";
     }
 }