diff --git a/demo/chatdialog.cpp b/demo/chatdialog.cpp
index 20ed372..c935c66 100644
--- a/demo/chatdialog.cpp
+++ b/demo/chatdialog.cpp
@@ -303,6 +303,16 @@
   SettingDialog dialog(this, m_user.getNick(), m_user.getChatroom(), m_user.getPrefix());
   connect(&dialog, SIGNAL(updated(QString, QString, QString)), this, SLOT(settingUpdated(QString, QString, QString)));
   dialog.exec();
+  QTimer::singleShot(100, this, SLOT(checkSetting()));
+}
+
+void
+ChatDialog::checkSetting()
+{
+  if (m_user.getPrefix().isEmpty() || m_user.getNick().isEmpty() || m_user.getChatroom().isEmpty())
+  {
+    buttonPressed();
+  }
 }
 
 void
diff --git a/demo/chatdialog.h b/demo/chatdialog.h
index 452fc2e..312ebb0 100644
--- a/demo/chatdialog.h
+++ b/demo/chatdialog.h
@@ -41,6 +41,7 @@
 private slots:
   void returnPressed();
   void buttonPressed();
+  void checkSetting();
   void settingUpdated(QString, QString, QString);
 
 signals: