diff --git a/src/main/java/org/ntlab/tampoposerver/models/Notification.java b/src/main/java/org/ntlab/tampoposerver/models/Notification.java
index ccefd39..115664b 100644
--- a/src/main/java/org/ntlab/tampoposerver/models/Notification.java
+++ b/src/main/java/org/ntlab/tampoposerver/models/Notification.java
@@ -1,18 +1,22 @@
 package org.ntlab.tampoposerver.models;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
 public class Notification {
+    @JsonIgnore
     private String userId;
+    @JsonIgnore
     private String notificationId;
     private String from;
     private String text;
     private String time;
 
     public Notification(String u, String n, String f, String tx, String tm) {
-        userId = u;
-        notificationId = n;
-        from = f;
-        text = tx;
-        time = tm;
+        this.userId = u;
+        this.notificationId = n;
+        this.from = f;
+        this.text = tx;
+        this.time = tm;
     }
 
     public String getUserId() {