diff --git a/src/resultmodel.h b/src/resultmodel.h
index 9447a92..2b9af02 100644
--- a/src/resultmodel.h
+++ b/src/resultmodel.h
@@ -1,136 +1,136 @@
 /*
  *   Copyright (C) 2015, 2016 Ivan Cukic <ivan.cukic(at)kde.org>
  *
  *   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 KACTIVITIES_STATS_RESULTMODEL_H
 #define KACTIVITIES_STATS_RESULTMODEL_H
 
 // Qt
 #include <QObject>
 #include <QAbstractListModel>
 
 // Local
 #include "query.h"
 
 class QModelIndex;
 class QDBusPendingCallWatcher;
 
 class KConfigGroup;
 
 namespace KActivities {
 namespace Stats {
 
 class ResultModelPrivate;
 
 /**
  * Provides a model which displays the resources matching
  * the specified Query.
  */
 class KACTIVITIESSTATS_EXPORT ResultModel : public QAbstractListModel {
     Q_OBJECT
 
 public:
-    ResultModel(Query query, QObject *parent = 0);
-    ResultModel(Query query, const QString &clientId, QObject *parent = 0);
+    ResultModel(Query query, QObject *parent = nullptr);
+    ResultModel(Query query, const QString &clientId, QObject *parent = nullptr);
     virtual ~ResultModel();
 
     enum Roles {
         ResourceRole         = Qt::UserRole,
         TitleRole            = Qt::UserRole + 1,
         ScoreRole            = Qt::UserRole + 2,
         FirstUpdateRole      = Qt::UserRole + 3,
         LastUpdateRole       = Qt::UserRole + 4,
         LinkStatusRole       = Qt::UserRole + 5,
         LinkedActivitiesRole = Qt::UserRole + 6
     };
 
     int rowCount(const QModelIndex &parent
                  = QModelIndex()) const Q_DECL_OVERRIDE;
     QVariant data(const QModelIndex &item,
                   int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;
     QHash<int, QByteArray> roleNames() const Q_DECL_OVERRIDE;
 
     QVariant headerData(int section, Qt::Orientation orientation,
                         int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;
 
     void fetchMore(const QModelIndex &parent) Q_DECL_OVERRIDE;
     bool canFetchMore(const QModelIndex &parent) const Q_DECL_OVERRIDE;
 
     void linkToActivity(const QUrl &resource,
                         const Terms::Activity &activity
                             = Terms::Activity(QStringList()),
                         const Terms::Agent &agent
                             = Terms::Agent(QStringList()));
 
     void unlinkFromActivity(const QUrl &resource,
                             const Terms::Activity &activity
                                 = Terms::Activity(QStringList()),
                             const Terms::Agent &agent
                                 = Terms::Agent(QStringList()));
 
 public Q_SLOTS:
     /**
      * Removes the specified resource from the history
      */
     void forgetResource(const QString &resource);
 
     /**
      * Removes the specified resource from the history
      */
     void forgetResource(int row);
 
     /**
      * Clears the history of all resources that match the current
      * model query
      */
     void forgetAllResources();
 
     /**
      * Moves the resource to the specified position.
      *
      * Note that this only applies to the linked resources
      * since the recently/frequently used ones have
      * their natural order.
      *
      * @note This requires the clientId to be specified on construction.
      */
     void setResultPosition(const QString &resource, int position);
 
     /**
      * Sort the items by title.
      *
      * Note that this only affects the linked resources
      * since the recently/frequently used ones have
      * their natural order.
      *
      * @note This requires the clientId to be specified on construction.
      */
     void sortItems(Qt::SortOrder sortOrder);
 
 private:
     friend class ResultModelPrivate;
     ResultModelPrivate *const d;
 };
 
 } // namespace Stats
 } // namespace KActivities
 
 #endif // KACTIVITIES_STATS_RESULTMODEL_H