diff --git a/Modules/QtWidgets/src/QmitkColoredNodeDescriptor.cpp b/Modules/QtWidgets/src/QmitkColoredNodeDescriptor.cpp
index 9fe3b991c4..cd50050370 100644
--- a/Modules/QtWidgets/src/QmitkColoredNodeDescriptor.cpp
+++ b/Modules/QtWidgets/src/QmitkColoredNodeDescriptor.cpp
@@ -1,72 +1,73 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #include <QmitkColoredNodeDescriptor.h>
 #include <mitkNodePredicateDataType.h>
+#include <QFile>
 
 static QString ConvertRGBTripletToHexColorCode(float rgbTriplet[3])
 {
   return QString("#%1%2%3")
     .arg(std::max(0, std::min(255, static_cast<int>(rgbTriplet[0] * 255))), 2, 16, QLatin1Char('0'))
     .arg(std::max(0, std::min(255, static_cast<int>(rgbTriplet[1] * 255))), 2, 16, QLatin1Char('0'))
     .arg(std::max(0, std::min(255, static_cast<int>(rgbTriplet[2] * 255))), 2, 16, QLatin1Char('0'));
 }
 
 struct QmitkColoredNodeDescriptor::Impl
 {
   void CreateCachedIcon(const QString &hexColorCode);
 
   QHash<QString, QIcon> IconCache;
   QString IconTemplate;
 };
 
 void QmitkColoredNodeDescriptor::Impl::CreateCachedIcon(const QString &hexColorCode)
 {
   auto icon = this->IconTemplate;
   icon.replace(QStringLiteral("#00ff00"), hexColorCode, Qt::CaseInsensitive);
   this->IconCache[hexColorCode] = QPixmap::fromImage(QImage::fromData(icon.toLatin1()));
 }
 
 QmitkColoredNodeDescriptor::QmitkColoredNodeDescriptor(const QString &className, const QString &pathToIcon, mitk::NodePredicateBase *predicate, QObject *parent)
   : QmitkNodeDescriptor(className, QStringLiteral(""), predicate, parent),
     m_Impl(new Impl)
 {
   QFile iconTemplateFile(pathToIcon);
 
   if (iconTemplateFile.open(QIODevice::ReadOnly))
     m_Impl->IconTemplate = iconTemplateFile.readAll();
 }
 
 QmitkColoredNodeDescriptor::~QmitkColoredNodeDescriptor()
 {
   delete m_Impl;
 }
 
 QIcon QmitkColoredNodeDescriptor::GetIcon(const mitk::DataNode *node) const
 {
   if (nullptr == node)
     return QIcon();
 
   float rgbTriplet[] = { 1.0f, 1.0f, 1.0f };
   node->GetColor(rgbTriplet);
 
   auto hexColorCode = ConvertRGBTripletToHexColorCode(rgbTriplet);
 
   if (!m_Impl->IconCache.contains(hexColorCode))
     m_Impl->CreateCachedIcon(hexColorCode);
 
   return m_Impl->IconCache[hexColorCode];
 }