diff --git a/app/src/main/java/com/example/cosmosclient/entities/MemberListResponse.java b/app/src/main/java/com/example/cosmosclient/entities/MemberListResponse.java
index a143e0f..6606c3b 100644
--- a/app/src/main/java/com/example/cosmosclient/entities/MemberListResponse.java
+++ b/app/src/main/java/com/example/cosmosclient/entities/MemberListResponse.java
@@ -1,8 +1,10 @@
 package com.example.cosmosclient.entities;
 
 import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Set;
 
 public class MemberListResponse {
-    public ArrayList<User> member;
+    public ArrayList<User> member = new ArrayList<>();
 
 }