diff --git a/mainwindow.cpp b/mainwindow.cpp
index 9f32c1ab0..9787f3ded 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -463,6 +463,7 @@ MainWindow::~MainWindow()
   QByteArray cfname=fname.toLocal8Bit();
   fftwf_export_wisdom_to_filename(cfname);
   m_audioThread->wait ();
+  delete ui, ui = 0;
 }
 
 //-------------------------------------------------------- writeSettings()
diff --git a/mainwindow.h b/mainwindow.h
index 685d62c77..b53cce38f 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -205,7 +205,7 @@ private:
   bool m_multiple;
   QSettings * m_settings;
 
-  QScopedPointer<Ui::MainWindow> ui;
+  Ui::MainWindow * ui;
 
   // other windows
   Configuration m_config;