diff --git a/src/libs/models/ResourceItemSFModel.cpp b/src/libs/models/ResourceItemSFModel.cpp
index 03040dab..15505e99 100644
--- a/src/libs/models/ResourceItemSFModel.cpp
+++ b/src/libs/models/ResourceItemSFModel.cpp
@@ -1,108 +1,110 @@
 /* This file is part of the KDE project
  * Copyright (C) 2020 Dag Andersen <danders@get2net.dk>
  * Copyright (C) 2019 Dag Andersen <danders@get2net.dk>
  * Copyright (C) 2006 - 2007, 2012 Dag Andersen <danders@get2net.dk>
  * 
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  * 
  * 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
  * Library General Public License for more details.
  * 
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 // clazy:excludeall=qstring-arg
 #include "ResourceItemSFModel.h"
 
 #include "ResourceItemModel.h"
 #include <kptproject.h>
 #include <kptdebug.h>
 
 #include <QApplication>
 #include <QComboBox>
 #include <QKeyEvent>
 #include <QModelIndex>
 #include <QItemSelection>
 #include <QStyleOptionViewItem>
 #include <QTimeEdit>
 #include <QPainter>
 #include <QToolTip>
 #include <QTreeView>
 #include <QStylePainter>
 #include <QMimeData>
 #include <QTextDocument>
 #include <QTextCursor>
 #include <QTextTableFormat>
 #include <QVector>
 #include <QTextLength>
 #include <QTextTable>
 
 #include <QBuffer>
 #include <KoStore.h>
 #include <KoXmlWriter.h>
 #include <KoOdfWriteStore.h>
 
 #include <kcombobox.h>
 #include <klineedit.h>
 
 
 using namespace KPlato;
 
 
 ResourceItemSFModel::ResourceItemSFModel(QObject *parent)
     : QSortFilterProxyModel(parent)
     , m_project(nullptr)
 {
     setDynamicSortFilter(true);
-    setSourceModel(new ResourceItemModel(this));
+    ResourceItemModel *m = new ResourceItemModel(this);
+    m->setIsCheckable(false);
+    setSourceModel(m);
 }
 
 void ResourceItemSFModel::setProject(Project *project)
 {
     static_cast<ResourceItemModel*>(sourceModel())->setProject(project);
     m_project = project;
 }
 
 Resource *ResourceItemSFModel::resource(const QModelIndex &idx) const
 {
     return static_cast<ResourceItemModel*>(sourceModel())->resource(mapToSource(idx));
 }
 
 QModelIndex ResourceItemSFModel::index(Resource *r) const
 {
     return mapFromSource(static_cast<ResourceItemModel*>(sourceModel())->index(r));
 }
 
 Qt::ItemFlags ResourceItemSFModel::flags(const QModelIndex &index) const
 {
     Qt::ItemFlags f = QSortFilterProxyModel::flags(index);
     return f;
 }
 
 void ResourceItemSFModel::setFilteredResources(const QList<Resource*> &lst)
 {
     m_filteredResources = lst;
 }
 
 void ResourceItemSFModel::addFilteredResource(Resource *r)
 {
     if (!m_filteredResources.contains(r)) {
         m_filteredResources << r;
     }
 }
 
 bool ResourceItemSFModel::filterAcceptsRow(int source_row, const QModelIndex & source_parent) const
 {
     if (m_project && m_filteredResources.contains(m_project->resourceAt(source_row))) {
         return false;
     }
     return QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent);
 }