diff --git a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
index d56cda0..90383d1 100644
--- a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
@@ -55,6 +55,8 @@
         //RoomViewModelへのアクセス
         RoomViewModel roomViewModel = new ViewModelProvider(this).get(RoomViewModel.class);
 
+        roomViewModel.setRid(roomId);
+
         //LiveData(List<Member>)への購読
         roomViewModel.getMembersLiveData().observe(this, new Observer<List<Member>>() {
             private List<Member> members;