diff --git a/libdiscover/backends/DummyBackend/DummySourcesBackend.cpp b/libdiscover/backends/DummyBackend/DummySourcesBackend.cpp
index fe052a63..3c81be81 100644
--- a/libdiscover/backends/DummyBackend/DummySourcesBackend.cpp
+++ b/libdiscover/backends/DummyBackend/DummySourcesBackend.cpp
@@ -1,70 +1,80 @@
 /***************************************************************************
  *   Copyright © 2014 Aleix Pol Gonzalez <aleixpol@blue-systems.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 "DummySourcesBackend.h"
 #include <QDebug>
 #include <QAction>
 
 DummySourcesBackend::DummySourcesBackend(AbstractResourcesBackend * parent)
     : AbstractSourcesBackend(parent)
     , m_sources(new QStandardItemModel(this))
     , m_testAction(new QAction(QIcon::fromTheme(QStringLiteral("kalgebra")), QStringLiteral("DummyAction"), this))
 {
     for (int i = 0; i<10; ++i)
         addSource(QStringLiteral("DummySource%1").arg(i));
 
     connect(m_testAction, &QAction::triggered, [](){ qDebug() << "action triggered!"; });
     connect(m_sources, &QStandardItemModel::itemChanged, this, [](QStandardItem* item) { qDebug() << "DummySource changed" << item << item->checkState(); });
 }
 
 QAbstractItemModel* DummySourcesBackend::sources()
 {
     return m_sources;
 }
 
 bool DummySourcesBackend::addSource(const QString& id)
 {
     if (id.isEmpty())
         return false;
 
     QStandardItem* it = new QStandardItem(id);
+    it->setData(id, AbstractSourcesBackend::IdRole);
     it->setData(QVariant(id + QLatin1Char(' ') + id), Qt::ToolTipRole);
     it->setCheckable(true);
     it->setCheckState(Qt::Checked);
     m_sources->appendRow(it);
     return true;
 }
 
+QStandardItem * DummySourcesBackend::sourceForId(const QString& id) const
+{
+    for (int i=0, c=m_sources->rowCount(); i<c; ++i) {
+        const auto it = m_sources->item(i, 0);
+        if (it->text() == id)
+            return it;
+    }
+    return nullptr;
+}
+
 bool DummySourcesBackend::removeSource(const QString& id)
 {
-    QList<QStandardItem*> items = m_sources->findItems(id);
-    if (items.count()==1) {
-        m_sources->removeRow(items.first()->row());
-    } else {
-        qWarning() << "couldn't find " << id  << items;
+    const auto it = sourceForId(id);
+    if (!it) {
+        qWarning() << "couldn't find " << id;
+        return false;
     }
-    return items.count()==1;
+    return m_sources->removeRow(it->row());
 }
 
 QList<QAction*> DummySourcesBackend::actions() const
 {
     return QList<QAction*>() << m_testAction;
 }
 
diff --git a/libdiscover/backends/DummyBackend/DummySourcesBackend.h b/libdiscover/backends/DummyBackend/DummySourcesBackend.h
index 3033f65b..fb7671a9 100644
--- a/libdiscover/backends/DummyBackend/DummySourcesBackend.h
+++ b/libdiscover/backends/DummyBackend/DummySourcesBackend.h
@@ -1,44 +1,46 @@
 /***************************************************************************
  *   Copyright © 2014 Aleix Pol Gonzalez <aleixpol@blue-systems.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/>. *
  ***************************************************************************/
 
 #ifndef DUMMYSOURCESBACKEND_H
 #define DUMMYSOURCESBACKEND_H
 
 #include <resources/AbstractSourcesBackend.h>
 #include <QStandardItemModel>
 
 class DummySourcesBackend : public AbstractSourcesBackend
 {
 public:
     explicit DummySourcesBackend(AbstractResourcesBackend * parent);
 
     QAbstractItemModel* sources() override;
     bool addSource(const QString& id) override;
     bool removeSource(const QString& id) override;
     QString idDescription() override { return QStringLiteral("Random weird text"); }
     QList<QAction*> actions() const override;
     bool supportsAdding() const override { return true; }
 
 private:
+    QStandardItem* sourceForId(const QString& id) const;
+
     QStandardItemModel* m_sources;
     QAction* m_testAction;
 };
 
 #endif // DUMMYSOURCESBACKEND_H