diff --git a/Modules/QtWidgets/include/QmitkLevelWindowWidget.h b/Modules/QtWidgets/include/QmitkLevelWindowWidget.h
index 3412d90e85..1dce4bebdc 100644
--- a/Modules/QtWidgets/include/QmitkLevelWindowWidget.h
+++ b/Modules/QtWidgets/include/QmitkLevelWindowWidget.h
@@ -1,50 +1,49 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #ifndef QmitkLevelWindowWidget_h
 #define QmitkLevelWindowWidget_h
 
 #include <MitkQtWidgetsExports.h>
 #include <mitkLevelWindowManager.h>
 
 #include <QWidget>
 
 // Forward declarations
 namespace Ui
 {
   class QmitkLevelWindow;
 }
 
 /// \ingroup QmitkModule
 class MITKQTWIDGETS_EXPORT QmitkLevelWindowWidget : public QWidget
 {
   Q_OBJECT
 public:
   QmitkLevelWindowWidget(QWidget *parent = nullptr, Qt::WindowFlags f = nullptr);
   ~QmitkLevelWindowWidget() override;
 
   mitk::LevelWindowManager *GetManager();
 
 public slots:
   void SetDataStorage(mitk::DataStorage *ds);
 
 protected:
   // unsigned long m_ObserverTag;
   mitk::LevelWindowManager::Pointer m_Manager;
 
 private:
-
- //!< GUI controls of this plugin.
+  // GUI controls of this plugin
   Ui::QmitkLevelWindow* ui;
 
 };
 #endif
diff --git a/Modules/QtWidgets/src/QmitkLevelWindowWidget.cpp b/Modules/QtWidgets/src/QmitkLevelWindowWidget.cpp
index 18b877ba29..6e04d83594 100644
--- a/Modules/QtWidgets/src/QmitkLevelWindowWidget.cpp
+++ b/Modules/QtWidgets/src/QmitkLevelWindowWidget.cpp
@@ -1,42 +1,41 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 #include "QmitkLevelWindowWidget.h"
 #include "QmitkSliderLevelWindowWidget.h"
 
-#include "ui_QmitkLevelWindowWidget.h"
-
+#include <ui_QmitkLevelWindowWidget.h>
 
 QmitkLevelWindowWidget::QmitkLevelWindowWidget(QWidget *parent, Qt::WindowFlags f)
   : QWidget(parent, f), ui(new Ui::QmitkLevelWindow)
 {
   ui->setupUi(this);
 
   m_Manager = mitk::LevelWindowManager::New();
 
   ui->SliderLevelWindowWidget->SetLevelWindowManager(m_Manager.GetPointer());
   ui->LineEditLevelWindowWidget->SetLevelWindowManager(m_Manager.GetPointer());
 }
 
 QmitkLevelWindowWidget::~QmitkLevelWindowWidget()
 {
      delete ui;
 }
 
 void QmitkLevelWindowWidget::SetDataStorage(mitk::DataStorage *ds)
 {
   m_Manager->SetDataStorage(ds);
 }
 
 mitk::LevelWindowManager *QmitkLevelWindowWidget::GetManager()
 {
   return m_Manager.GetPointer();
 }