diff --git a/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h b/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h
index 43c246314..3342bd635 100644
--- a/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h
+++ b/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h
@@ -1,73 +1,73 @@
 /*
  * Copyright 2019 Kai Uwe Broulik <kde@privat.broulik.de>
  *
  * 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/>.
  */
 
 #pragma once
 
 #include <QSortFilterProxyModel>
 #include <QDateTime>
 
 namespace NotificationManager {
 
 class NotificationGroupCollapsingProxyModel : public QSortFilterProxyModel
 {
     Q_OBJECT
 
 public:
     explicit NotificationGroupCollapsingProxyModel(QObject *parent = nullptr);
     ~NotificationGroupCollapsingProxyModel() override;
 
     void setSourceModel(QAbstractItemModel *sourceModel) override;
 
     QVariant data(const QModelIndex &index, int role) const override;
     bool setData(const QModelIndex &index, const QVariant &value, int role) override;
 
     int limit() const;
     void setLimit(int limit);
 
     QDateTime lastRead() const;
     void setLastRead(const QDateTime &lastRead);
 
     bool expandUnread() const;
     void setExpandUnread(bool expand);
 
     void collapseAll();
 
 signals:
     void limitChanged();
     void lastReadChanged();
     void expandUnreadChanged();
 
 protected:
     bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;
 
 private:
     bool setGroupExpanded(const QModelIndex &idx, bool expanded);
 
     void invalidateGroupRoles();
 
-    int m_limit;
+    int m_limit = 0;
     QDateTime m_lastRead;
     bool m_expandUnread = false;
 
     QList<QPersistentModelIndex> m_expandedGroups;
 
 };
 
 } // namespace NotificationManager