diff --git a/libs/widgets/KisPaletteListWidget.h b/libs/widgets/KisPaletteListWidget.h
index 482caf3b88..ffd5e76995 100644
--- a/libs/widgets/KisPaletteListWidget.h
+++ b/libs/widgets/KisPaletteListWidget.h
@@ -1,68 +1,68 @@
 /*
  *  Copyright (c) 2013 Sven Langkamp <sven.langkamp@gmail.com>
  *  Copyright (c) 2018 Michael Zhou <simeirxh@gmail.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #ifndef KISPALETTELISTWIDGET_H
 #define KISPALETTELISTWIDGET_H
 
 #include <QString>
 #include <QWidget>
 #include <ui_WdgPaletteListWidget.h>
 
 #include "kritawidgets_export.h"
 
 class KoResource;
 class KoColorSet;
 
-class KisPaletteListWidgetPrivate;
+struct KisPaletteListWidgetPrivate;
 
 class KRITAWIDGETS_EXPORT KisPaletteListWidget : public QWidget
 {
     Q_OBJECT
 public:
     explicit KisPaletteListWidget(QWidget *parent = nullptr);
     virtual ~KisPaletteListWidget();
 
 public:
     void setAllowModification(bool allowModification);
 
 Q_SIGNALS:
     void sigPaletteSelected(KoColorSet*);
     void sigAddPalette();
     void sigRemovePalette(KoColorSet *);
     void sigImportPalette();
     void sigExportPalette(KoColorSet *);
 
 public Q_SLOTS:
 
 private /* methods */:
     QString newPaletteFileName();
 
 private Q_SLOTS:
     void slotPaletteResourceSelected(KoResource *);
     void slotAdd();
     void slotRemove();
     void slotImport();
     void slotExport();
 
 private:
     QScopedPointer<Ui_WdgPaletteListWidget> m_ui;
     QScopedPointer<KisPaletteListWidgetPrivate> m_d;
 };
 
 #endif // KISPALETTELISTWIDGET_H