diff --git a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
index 3661754..0fdb2c0 100644
--- a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
@@ -315,7 +315,7 @@
         builder.setMessage(strMessage);
         builder.setTitle(strTitle);
 
-        builder.setNegativeButton("仕方ないなぁ", new DialogInterface.OnClickListener() {
+        builder.setNegativeButton("OK", new DialogInterface.OnClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which) {
                 System.out.println("ホームへ戻される");