diff --git a/dataengines/potd/bingprovider.cpp b/dataengines/potd/bingprovider.cpp
index a2a2f8fab..83a412969 100644
--- a/dataengines/potd/bingprovider.cpp
+++ b/dataengines/potd/bingprovider.cpp
@@ -1,116 +1,116 @@
 /*
  *   Copyright 2017 Weng Xuetian <wengxt@gmail.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) any later version.
  *
  *   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 "bingprovider.h"
 
 #include <QRegExp>
 #include <QImage>
 #include <QJsonDocument>
 #include <QJsonArray>
 #include <QDebug>
 
 #include <kio/job.h>
 
 class BingProvider::Private
 {
 public:
     Private(BingProvider* parent)
         : mParent(parent)
     {
     }
 
     void pageRequestFinished(KJob*);
     void imageRequestFinished(KJob*);
     void parsePage();
 
     BingProvider* mParent;
     QImage mImage;
 };
 
 void BingProvider::Private::pageRequestFinished(KJob* _job)
 {
     KIO::StoredTransferJob* job = static_cast<KIO::StoredTransferJob*>(_job);
     if (job->error()) {
         emit mParent->error(mParent);
         return;
     }
 
     auto json = QJsonDocument::fromJson(job->data());
     do {
         if (json.isNull()) {
             break;
         }
         auto imagesArray = json.object().value("images");
         if (!imagesArray.isArray() || imagesArray.toArray().size() <= 0) {
             break;
         }
-        auto imageObj = imagesArray.toArray()[0];
+        auto imageObj = imagesArray.toArray().at(0);
         if (!imageObj.isObject()) {
             break;
         }
         auto url = imageObj.toObject().value("url");
         if (!url.isString() || url.toString().isEmpty()) {
             break;
         }
         QUrl picUrl(QString(QLatin1String("https://www.bing.com/%1")).arg(url.toString()));
         KIO::StoredTransferJob* imageJob = KIO::storedGet(picUrl, KIO::NoReload, KIO::HideProgressInfo);
         mParent->connect(imageJob, SIGNAL(finished(KJob*)), SLOT(imageRequestFinished(KJob*)));
         return;
     } while (0);
 
     emit mParent->error(mParent);
     return;
 }
 
 void BingProvider::Private::imageRequestFinished(KJob* _job)
 {
     KIO::StoredTransferJob* job = static_cast<KIO::StoredTransferJob*>(_job);
     if (job->error()) {
         emit mParent->error(mParent);
         return;
     }
     QByteArray data = job->data();
     mImage = QImage::fromData(data);
     emit mParent->finished(mParent);
 }
 
 BingProvider::BingProvider(QObject* parent, const QVariantList& args)
     : PotdProvider(parent, args), d(new Private(this))
 {
     QUrl url(QLatin1String("https://www.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1"));
 
     KIO::StoredTransferJob* job = KIO::storedGet(url, KIO::NoReload, KIO::HideProgressInfo);
     connect(job, SIGNAL(finished(KJob*)), SLOT(pageRequestFinished(KJob*)));
 }
 
 BingProvider::~BingProvider()
 {
     delete d;
 }
 
 QImage BingProvider::image() const
 {
     return d->mImage;
 }
 
 K_PLUGIN_FACTORY_WITH_JSON(BingProviderFactory, "bingprovider.json", registerPlugin<BingProvider>();)
 
 #include "bingprovider.moc"
 #include "moc_bingprovider.cpp"