diff --git a/libdiscover/backends/FlatpakBackend/FlatpakSourcesBackend.cpp b/libdiscover/backends/FlatpakBackend/FlatpakSourcesBackend.cpp
index 2286f260..dabb205e 100644
--- a/libdiscover/backends/FlatpakBackend/FlatpakSourcesBackend.cpp
+++ b/libdiscover/backends/FlatpakBackend/FlatpakSourcesBackend.cpp
@@ -1,295 +1,296 @@
 /***************************************************************************
  *   Copyright © 2014 Aleix Pol Gonzalez <aleixpol@blue-systems.com>       *
  *   Copyright © 2017 Jan Grulich <jgrulich@redhat.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) 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 14 of version 3 of the license.                    *
  *                                                                         *
  *   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, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #include "FlatpakSourcesBackend.h"
 #include "FlatpakResource.h"
 #include "FlatpakBackend.h"
 #include <KLocalizedString>
 #include <KSharedConfig>
 #include <KConfigGroup>
 #include <QDebug>
 #include <QNetworkAccessManager>
 #include <QNetworkReply>
 #include <QAction>
 
 #include <glib.h>
 #include <QTemporaryFile>
 #include <QStandardPaths>
 #include <resources/StoredResultsStream.h>
 
 class FlatpakSourceItem : public QStandardItem
 {
 public:
     FlatpakSourceItem(const QString &text) : QStandardItem(text) { }
     void setFlatpakInstallation(FlatpakInstallation *installation) { m_installation = installation; }
     FlatpakInstallation *flatpakInstallation() const { return m_installation; }
 
 private:
     FlatpakInstallation *m_installation;
 };
 
 FlatpakSourcesBackend::FlatpakSourcesBackend(const QVector<FlatpakInstallation *> &installations, AbstractResourcesBackend * parent)
     : AbstractSourcesBackend(parent)
     , m_preferredInstallation(installations.constFirst())
     , m_sources(new QStandardItemModel(this))
     , m_flathubAction(new QAction(i18n("Add Flathub"), this))
 {
     QHash<int, QByteArray> roles = m_sources->roleNames();
     roles.insert(Qt::CheckStateRole, "checked");
     roles.insert(Qt::UserRole, "flatpakInstallation");
     m_sources->setItemRoleNames(roles);
 
     m_flathubAction->setToolTip(QStringLiteral("flathub"));
     connect(m_flathubAction, &QAction::triggered, this, [this](){
         addSource(QStringLiteral("https://flathub.org/repo/flathub.flatpakrepo"));
     });
     for (auto installation : installations) {
         if (!listRepositories(installation)) {
             qWarning() << "Failed to list repositories from installation" << installation;
         }
     }
 }
 
 FlatpakSourcesBackend::~FlatpakSourcesBackend()
 {
     QStringList ids;
     for (int i = 0, c = m_sources->rowCount(); i<c; ++i) {
         auto it = m_sources->item(i);
         ids << it->data(IdRole).toString();
     }
 
     auto conf = KSharedConfig::openConfig();
     KConfigGroup group = conf->group("FlatpakSources");
     group.writeEntry("Sources", ids);
 }
 
 QAbstractItemModel* FlatpakSourcesBackend::sources()
 {
     return m_sources;
 }
 
 bool FlatpakSourcesBackend::addSource(const QString &id)
 {
     FlatpakBackend* backend = qobject_cast<FlatpakBackend*>(parent());
     const QUrl flatpakrepoUrl(id);
 
     if (id.isEmpty() || !flatpakrepoUrl.isValid())
         return false;
 
     if (flatpakrepoUrl.isLocalFile()) {
         auto res = backend->addSourceFromFlatpakRepo(flatpakrepoUrl);
         if (res)
             backend->installApplication(res);
         else
             backend->passiveMessage(i18n("Could not add the source %1", flatpakrepoUrl.toDisplayString()));
     } else {
         AbstractResourcesBackend::Filters filter;
         filter.resourceUrl = flatpakrepoUrl;
         auto stream = new StoredResultsStream ({backend->search(filter)});
         connect(stream, &StoredResultsStream::finished, this, [backend, stream, flatpakrepoUrl]() {
             const auto res = stream->resources();
             if (!res.isEmpty()) {
                 Q_ASSERT(res.count() == 1);
                 backend->installApplication(res.first());
             } else {
                 backend->passiveMessage(i18n("Could not add the source %1", flatpakrepoUrl.toDisplayString()));
             }
         });
     }
     return true;
 }
 
 QStandardItem * FlatpakSourcesBackend::sourceById(const QString& id) const
 {
     QStandardItem* sourceIt = nullptr;
     for (int i = 0, c = m_sources->rowCount(); i<c; ++i) {
         auto it = m_sources->item(i);
         if (it->data(IdRole) == id) {
             sourceIt = it;
             break;
         }
     }
     return sourceIt;
 }
 
 bool FlatpakSourcesBackend::removeSource(const QString &id)
 {
     auto sourceIt = sourceById(id);
     if (sourceIt) {
         FlatpakSourceItem *sourceItem = static_cast<FlatpakSourceItem*>(sourceIt);
         g_autoptr(GCancellable) cancellable = g_cancellable_new();
         g_autoptr(GError) error = NULL;
         if (flatpak_installation_remove_remote(sourceItem->flatpakInstallation(), id.toUtf8().constData(), cancellable, &error)) {
             m_sources->removeRow(sourceItem->row());
             return true;
         } else {
             qWarning() << "Failed to remove " << id << " remote repository:" << error->message;
             return false;
         }
     } else {
         qWarning() << "couldn't find " << id;
         return false;
     }
 
     return false;
 }
 
 QList<QAction*> FlatpakSourcesBackend::actions() const
 {
     return { m_flathubAction };
 }
 
 bool FlatpakSourcesBackend::listRepositories(FlatpakInstallation* installation)
 {
     Q_ASSERT(installation);
 
     g_autoptr(GCancellable) cancellable = g_cancellable_new();
     g_autoptr(GPtrArray) remotes = flatpak_installation_list_remotes(installation, cancellable, nullptr);
 
     if (!remotes) {
         return false;
     }
 
     for (uint i = 0; i < remotes->len; i++) {
         FlatpakRemote *remote = FLATPAK_REMOTE(g_ptr_array_index(remotes, i));
 
         if (flatpak_remote_get_noenumerate(remote)) {
             continue;
         }
 
         addRemote(remote, installation);
     }
 
     return true;
 }
 
 FlatpakRemote * FlatpakSourcesBackend::installSource(FlatpakResource *resource)
 {
     g_autoptr(GCancellable) cancellable = g_cancellable_new();
 
     auto remote = flatpak_installation_get_remote_by_name(m_preferredInstallation, resource->flatpakName().toUtf8().constData(), cancellable, nullptr);
     if (remote) {
         qWarning() << "Source " << resource->flatpakName() << " already exists";
         return nullptr;
     }
 
     remote = flatpak_remote_new(resource->flatpakName().toUtf8().constData());
     flatpak_remote_set_url(remote, resource->getMetadata(QStringLiteral("repo-url")).toString().toUtf8().constData());
     flatpak_remote_set_noenumerate(remote, false);
     flatpak_remote_set_title(remote, resource->comment().toUtf8().constData());
 
     const QString gpgKey = resource->getMetadata(QStringLiteral("gpg-key")).toString();
     if (!gpgKey.isEmpty()) {
         gsize dataLen = 0;
         g_autofree guchar *data = nullptr;
         g_autoptr(GBytes) bytes = nullptr;
         data = g_base64_decode(gpgKey.toUtf8().constData(), &dataLen);
         bytes = g_bytes_new(data, dataLen);
         flatpak_remote_set_gpg_verify(remote, true);
         flatpak_remote_set_gpg_key(remote, bytes);
     } else {
         flatpak_remote_set_gpg_verify(remote, false);
     }
 
     if (!resource->branch().isEmpty()) {
         flatpak_remote_set_default_branch(remote, resource->branch().toUtf8().constData());
     }
 
     if (!flatpak_installation_modify_remote(m_preferredInstallation, remote, cancellable, nullptr)) {
         qWarning() << "Failed to add source " << resource->flatpakName();
         return nullptr;
     }
 
     addRemote(remote, m_preferredInstallation);
 
     return remote;
 }
 
 void FlatpakSourcesBackend::addRemote(FlatpakRemote *remote, FlatpakInstallation *installation)
 {
     const QString id = QString::fromUtf8(flatpak_remote_get_name(remote));
     const QString title = QString::fromUtf8(flatpak_remote_get_title(remote));
     const QUrl remoteUrl(QString::fromUtf8(flatpak_remote_get_url(remote)));
 
     for(QAction *action: actions()) {
         if (action->toolTip() == id) {
             action->setEnabled(false);
             action->setVisible(false);
         }
     }
 
     FlatpakSourceItem *it = new FlatpakSourceItem(!title.isEmpty() ? title : id);
     it->setCheckState(flatpak_remote_get_disabled(remote) ? Qt::Unchecked : Qt::Checked);
     it->setData(remoteUrl.host(), Qt::ToolTipRole);
     it->setData(id, IdRole);
     it->setFlatpakInstallation(installation);
 
     int idx = -1;
     {
         const auto conf = KSharedConfig::openConfig();
         const KConfigGroup group = conf->group("FlatpakSources");
         const auto ids = group.readEntry<QStringList>("Sources", QStringList());
 
         const auto ourIdx = ids.indexOf(id);
         if (ourIdx<0) { //If not present, we put it on top
             idx = 0;
         } else {
             idx=0;
             for(int c=m_sources->rowCount(); idx<c; ++idx) {
                 const auto compIt = m_sources->item(idx);
                 const int compIdx = ids.indexOf(compIt->data(IdRole).toString());
                 if (compIdx >= ourIdx) {
                     break;
                 }
             }
         }
     }
 
     m_sources->insertRow(idx, it);
     if (m_sources->rowCount() == 1)
         Q_EMIT firstSourceIdChanged();
     Q_EMIT lastSourceIdChanged();
 }
 
 QString FlatpakSourcesBackend::idDescription()
 {
     return i18n("Flatpak repository URI (*.flatpakrepo)");
 }
 
 bool FlatpakSourcesBackend::moveSource(const QString& sourceId, int delta)
 {
     const auto row = sourceById(sourceId)->row();
     auto prevRow = m_sources->takeRow(row);
     Q_ASSERT(!prevRow.isEmpty());
 
     const auto destRow = row + (delta>0? delta : delta);
     m_sources->insertRow(destRow, prevRow);
     if (destRow == 0 || row == 0)
         Q_EMIT firstSourceIdChanged();
     if (destRow == m_sources->rowCount() - 1 || row == m_sources->rowCount() - 1)
         Q_EMIT lastSourceIdChanged();
     return true;
 }
 
 int FlatpakSourcesBackend::originIndex(const QString& sourceId) const
 {
-    return sourceById(sourceId)->row();
+    auto item = sourceById(sourceId);
+    return item ? item->row() : INT_MAX;
 }