diff --git a/src/qtquick/PDFCoverImageProvider.h b/src/qtquick/PDFCoverImageProvider.h
index b5f565d..aaa2556 100644
--- a/src/qtquick/PDFCoverImageProvider.h
+++ b/src/qtquick/PDFCoverImageProvider.h
@@ -1,53 +1,53 @@
 /*
  * Copyright (C) 2016 Dan Leinir Turthra Jensen <admin@leinir.dk>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) version 3, or any
  * later version accepted by the membership of KDE e.V. (or its
  * successor approved by the membership of KDE e.V.), which shall
  * act as a proxy defined in Section 6 of version 3 of the license.
  *
  * This library 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
 #ifndef PDFCOVERIMAGEPROVIDER_H
 #define PDFCOVERIMAGEPROVIDER_H
 
 #include <QQuickImageProvider>
 
 /**
  * \brief Get file previews of PDF files, where the thumbnailer isn't available...
  * 
  * NOTE: As this task is potentially heavy, make sure to mark any Image using this provider asynchronous
  */
 class PDFCoverImageProvider : public QQuickImageProvider
 {
 public:
     explicit PDFCoverImageProvider();
     virtual ~PDFCoverImageProvider();
 
     /**
      * \brief Get an image.
      * 
      * @param id The source of the image.
      * @param size The size of the original image, unused.
      * @param requestedSize The required size of the final image, unused.
      * 
      * @return a QImage.
      */
-    virtual QImage requestImage(const QString& id, QSize* size, const QSize& requestedSize);
+    virtual QImage requestImage(const QString& id, QSize* size, const QSize& requestedSize) override;
 private:
     class Private;
     Private* d;
 };
 
 #endif//PDFCOVERIMAGEPROVIDER_H