diff --git a/dataengines/apps/appsengine.cpp b/dataengines/apps/appsengine.cpp
index e1579722e..46e7b3fbc 100644
--- a/dataengines/apps/appsengine.cpp
+++ b/dataengines/apps/appsengine.cpp
@@ -1,93 +1,93 @@
 /*
  * Copyright 2009 Chani Armitage <chani@kde.org>
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU Library General Public License version 2 as
  *   published by the Free Software Foundation
  *
  *   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 Library General Public
  *   License along with this program; if not, write to the
  *   Free Software Foundation, Inc.,
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
 #include "appsengine.h"
 #include "appsource.h"
 
 #include <KSycoca>
 
 AppsEngine::AppsEngine(QObject *parent, const QVariantList &args) :
     Plasma::DataEngine(parent, args)
 {
     Q_UNUSED(args);
     init();
 }
 
 AppsEngine::~AppsEngine()
 {
 }
 
 void AppsEngine::init()
 {
     addGroup(KServiceGroup::root());
-    connect(KSycoca::self(), SIGNAL(databaseChanged(QStringList)), this, SLOT(sycocaChanged(QStringList)));
+    connect(KSycoca::self(), QOverload<const QStringList &>::of(&KSycoca::databaseChanged), this, &AppsEngine::sycocaChanged);
 }
 
 void AppsEngine::sycocaChanged(const QStringList &changes)
 {
     if (changes.contains(QStringLiteral("apps")) || changes.contains(QStringLiteral("xdgdata-apps"))) {
         removeAllSources();
         addGroup(KServiceGroup::root());
     }
 }
 
 Plasma::Service *AppsEngine::serviceForSource(const QString &name)
 {
     AppSource *source = dynamic_cast<AppSource*>(containerForSource(name));
     // if source does not exist, return null service
     if (!source) {
         return Plasma::DataEngine::serviceForSource(name);
     }
 
     // if source represents a group or something, return null service
     if (!source->isApp()) {
         return Plasma::DataEngine::serviceForSource(name);
     }
     // if source represent a proper app, return real service
     Plasma::Service *service = source->createService();
     service->setParent(this);
     return service;
 }
 
 void AppsEngine::addGroup(KServiceGroup::Ptr group)
 {
     if (!(group && group->isValid())) {
         return;
     }
     AppSource *appSource = new AppSource(group, this);
     //TODO listen for changes
     addSource(appSource);
     //do children
     foreach (const KServiceGroup::Ptr &subGroup, group->groupEntries(KServiceGroup::NoOptions)) {
         addGroup(subGroup);
     }
     foreach (const KService::Ptr &app, group->serviceEntries(KServiceGroup::NoOptions)) {
         addApp(app);
     }
 }
 
 void AppsEngine::addApp(KService::Ptr app)
 {
     AppSource *appSource = new AppSource(app, this);
     //TODO listen for changes
     addSource(appSource);
 }
 
 K_EXPORT_PLASMA_DATAENGINE_WITH_JSON(apps, AppsEngine, "plasma-dataengine-apps.json")
 
 #include "appsengine.moc"