diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 88f3f83..4c3cd5d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -10,21 +10,17 @@
 
     <application
         android:name=".app.Cosmos"
+        android:networkSecurityConfig="@xml/network_security_config"
         android:allowBackup="true"
         android:hardwareAccelerated="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:networkSecurityConfig="@xml/network_security_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
         <activity
-            android:name=".views.DisplayGroupIDActivity"
-            android:label="IDを表示"
-            ></activity>
-        <activity
             android:name=".views.CreateGroupActivity"
-            android:label="グループ作成" />
+            android:label="グループ作成"></activity>
         <activity
             android:name=".views.JoinGroupByIDActivity"
             android:label="IDでグループに入る" />