diff --git a/GUI/View/Mask/MaskEditorPropertyPanel.cpp b/GUI/View/Mask/MaskEditorPropertyPanel.cpp
index 516c549b3804651d2cb1786ecdd2c1b8bfdcc80d..6cb4c203af00911175ec91c62ae014fff53eac31 100644
--- a/GUI/View/Mask/MaskEditorPropertyPanel.cpp
+++ b/GUI/View/Mask/MaskEditorPropertyPanel.cpp
@@ -16,8 +16,7 @@
 #include "GUI/Model/Data/IntensityDataItem.h"
 #include "GUI/Model/Session/SessionModel.h"
 #include "GUI/View/PropertyEditor/ComponentEditor.h"
-
-#include <qAccordion/contentpane.h>
+#include "GUI/View/Tool/Accordion.h"
 
 #include <QListView>
 #include <QVBoxLayout>
diff --git a/GUI/View/Tool/Accordion.h b/GUI/View/Tool/Accordion.h
new file mode 100644
index 0000000000000000000000000000000000000000..3ffc0fa9629f62c61a7a6f77a5449744dcf6bb13
--- /dev/null
+++ b/GUI/View/Tool/Accordion.h
@@ -0,0 +1,22 @@
+//  ************************************************************************************************
+//
+//  BornAgain: simulate and fit reflection and scattering
+//
+//! @file      GUI/View/Tool/Accordion.h
+//! @brief     Wraps include of headers from 3rdparty library qaccordion.
+//!
+//! @homepage  http://www.bornagainproject.org
+//! @license   GNU General Public License v3 or higher (see COPYING)
+//! @copyright Forschungszentrum Jülich GmbH 2018
+//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
+//
+//  ************************************************************************************************
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4267)
+#endif
+#include <qAccordion/contentpane.h>
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
diff --git a/GUI/View/Toplevel/TestView.cpp b/GUI/View/Toplevel/TestView.cpp
index a864c51c6784dbd49fd49997b771e0d0c645850b..ea8737948241b26799fe71fcc9757ec120e6ac7c 100644
--- a/GUI/View/Toplevel/TestView.cpp
+++ b/GUI/View/Toplevel/TestView.cpp
@@ -22,8 +22,7 @@
 #include "GUI/View/Fit/MinimizerSettingsWidget.h"
 #include "GUI/View/PropertyEditor/TestComponentView.h"
 #include "GUI/View/SpecularData/Plot1DCanvas.h"
-
-#include <qAccordion/contentpane.h>
+#include "GUI/View/Tool/Accordion.h"
 
 #include <QCheckBox>
 #include <QLineEdit>