diff --git a/chatkit/src/main/java/com/stfalcon/chatkit/commons/models/IDialog.java b/chatkit/src/main/java/com/stfalcon/chatkit/commons/models/IDialog.java
index 661c76e8..9462e6aa 100644
--- a/chatkit/src/main/java/com/stfalcon/chatkit/commons/models/IDialog.java
+++ b/chatkit/src/main/java/com/stfalcon/chatkit/commons/models/IDialog.java
@@ -16,8 +16,6 @@
 
 package com.stfalcon.chatkit.commons.models;
 
-import java.util.List;
-
 /**
  * For implementing by real dialog model
  */
@@ -30,7 +28,7 @@ public interface IDialog<MESSAGE extends IMessage> {
 
     String getDialogName();
 
-    List<? extends IUser> getUsers();
+    int getUsersCount();
 
     MESSAGE getLastMessage();
 
diff --git a/chatkit/src/main/java/com/stfalcon/chatkit/dialogs/DialogsListAdapter.java b/chatkit/src/main/java/com/stfalcon/chatkit/dialogs/DialogsListAdapter.java
index 9638ff7e..c683c85c 100644
--- a/chatkit/src/main/java/com/stfalcon/chatkit/dialogs/DialogsListAdapter.java
+++ b/chatkit/src/main/java/com/stfalcon/chatkit/dialogs/DialogsListAdapter.java
@@ -600,7 +600,7 @@ public void onBind(final DIALOG dialog) {
                 imageLoader.loadImage(ivLastMessageUser, dialog.getLastMessage().getUser().getAvatar());
             }
             ivLastMessageUser.setVisibility(dialogStyle.isDialogMessageAvatarEnabled()
-                    && dialog.getUsers().size() > 1 ? VISIBLE : GONE);
+                    && dialog.getUsersCount() > 1 ? VISIBLE : GONE);
 
             //Set Last message text
             tvLastMessage.setText(dialog.getLastMessage().getText());
diff --git a/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/fixtures/DialogsFixtures.java b/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/fixtures/DialogsFixtures.java
index b7505404..58c646a6 100644
--- a/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/fixtures/DialogsFixtures.java
+++ b/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/fixtures/DialogsFixtures.java
@@ -36,9 +36,9 @@ private static Dialog getDialog(int i, Date lastMessageCreatedAt) {
                 getRandomId(),
                 users.size() > 1 ? groupChatTitles.get(users.size() - 2) : users.get(0).getName(),
                 users.size() > 1 ? groupChatImages.get(users.size() - 2) : getRandomAvatar(),
-                users,
                 getMessage(lastMessageCreatedAt),
-                i < 3 ? 3 - i : 0);
+                i < 3 ? 3 - i : 0,
+                users.size());
     }
 
     private static ArrayList<User> getUsers() {
diff --git a/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/model/Dialog.java b/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/model/Dialog.java
index 7f239df6..d303b10b 100644
--- a/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/model/Dialog.java
+++ b/sample/src/main/java/com/stfalcon/chatkit/sample/common/data/model/Dialog.java
@@ -2,8 +2,6 @@
 
 import com.stfalcon.chatkit.commons.models.IDialog;
 
-import java.util.ArrayList;
-
 /*
  * Created by troy379 on 04.04.17.
  */
@@ -12,20 +10,18 @@ public class Dialog implements IDialog<Message> {
     private String id;
     private String dialogPhoto;
     private String dialogName;
-    private ArrayList<User> users;
     private Message lastMessage;
+    private int usersCount;
 
     private int unreadCount;
 
-    public Dialog(String id, String name, String photo,
-                  ArrayList<User> users, Message lastMessage, int unreadCount) {
-
+    public Dialog(String id, String name, String photo, Message lastMessage, int unreadCount, int usersCount) {
         this.id = id;
         this.dialogName = name;
         this.dialogPhoto = photo;
-        this.users = users;
         this.lastMessage = lastMessage;
         this.unreadCount = unreadCount;
+        this.usersCount = usersCount;
     }
 
     @Override
@@ -44,8 +40,8 @@ public String getDialogName() {
     }
 
     @Override
-    public ArrayList<User> getUsers() {
-        return users;
+    public int getUsersCount() {
+        return usersCount;
     }
 
     @Override
diff --git a/sample/src/main/java/com/stfalcon/chatkit/sample/features/demo/custom/holder/holders/dialogs/CustomDialogViewHolder.java b/sample/src/main/java/com/stfalcon/chatkit/sample/features/demo/custom/holder/holders/dialogs/CustomDialogViewHolder.java
index ba22f69a..a9e9b178 100644
--- a/sample/src/main/java/com/stfalcon/chatkit/sample/features/demo/custom/holder/holders/dialogs/CustomDialogViewHolder.java
+++ b/sample/src/main/java/com/stfalcon/chatkit/sample/features/demo/custom/holder/holders/dialogs/CustomDialogViewHolder.java
@@ -23,10 +23,10 @@ public CustomDialogViewHolder(View itemView) {
     public void onBind(Dialog dialog) {
         super.onBind(dialog);
 
-        if (dialog.getUsers().size() > 1) {
+        if (dialog.getUsersCount() > 1) {
             onlineIndicator.setVisibility(View.GONE);
         } else {
-            boolean isOnline = dialog.getUsers().get(0).isOnline();
+            boolean isOnline = dialog.getLastMessage().getUser().isOnline();
             onlineIndicator.setVisibility(View.VISIBLE);
             if (isOnline) {
                 onlineIndicator.setBackgroundResource(R.drawable.shape_bubble_online);