diff --git a/app/src/main/java/com/example/tampopo_client/views/ChatActivity.java b/app/src/main/java/com/example/tampopo_client/views/ChatActivity.java
index 6adc2be..23eaf8e 100644
--- a/app/src/main/java/com/example/tampopo_client/views/ChatActivity.java
+++ b/app/src/main/java/com/example/tampopo_client/views/ChatActivity.java
@@ -16,11 +16,11 @@
 import androidx.lifecycle.ViewModelProvider;
 import com.example.tampopo_client.R;
 import com.example.tampopo_client.Tampopo;
-import com.example.tampopo_client.viewmodels.ChatroomViewModel;
+import com.example.tampopo_client.viewmodels.ChatViewModel;
 
 public class ChatActivity extends AppCompatActivity {
 
-  private ChatroomViewModel chatroomViewModel;
+  private ChatViewModel chatroomViewModel;
 
   //メンバー変数
   private EditText senderMessage;
@@ -40,7 +40,7 @@
     EdgeToEdge.enable(this);//画面の端っこまで使う(Edge-to-Edge)表示
     setContentView(R.layout.activity_chat);//表示する画面のレイアウトXMLファイル(activity_chat.xml)を指定
 
-    chatroomViewModel = new ViewModelProvider(this).get(ChatroomViewModel.class);
+    chatroomViewModel = new ViewModelProvider(this).get(ChatViewModel.class);
 
     senderMessage = findViewById(R.id.sender_message);
     receiverMessage = findViewById(R.id.receiver_message);
@@ -97,7 +97,7 @@
             String senderId = tampopo.getUserId();
             String token = tampopo.getToken();
             String chatroomId = tampopo.getChatroomId();
-            chatroomViewModel.sendMessage(chatroomId, senderId, senderText, token);
+            chatroomViewModel.sendMessage(chatroomId, senderId, senderText, token, false);
             senderMessage.setText(senderText);//自分のメッセージを送信欄に表示
           }
       }