diff --git a/documentation/qthelp/qthelpproviderabstract.cpp b/documentation/qthelp/qthelpproviderabstract.cpp
index a115aca190..7f67fa47d7 100644
--- a/documentation/qthelp/qthelpproviderabstract.cpp
+++ b/documentation/qthelp/qthelpproviderabstract.cpp
@@ -1,112 +1,117 @@
 /*  This file is part of KDevelop
     Copyright 2009 Aleix Pol <aleixpol@kde.org>
     Copyright 2009 David Nolden <david.nolden.kdevelop@art-master.de>
     Copyright 2010 Benjamin Port <port.benjamin@gmail.com>
 
     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.
 */
 
 #include "qthelpprovider.h"
 
 #include <QHelpIndexModel>
 #include <QTemporaryFile>
 #include <QHelpContentModel>
 
 #include <QStandardPaths>
 
 #include <language/duchain/duchain.h>
 #include <language/duchain/declaration.h>
 #include <language/duchain/duchainlock.h>
 #include <language/duchain/parsingenvironment.h>
 
 #include "qthelpdocumentation.h"
 #include "debug.h"
 
 using namespace KDevelop;
 
 QtHelpProviderAbstract::QtHelpProviderAbstract(QObject *parent, const QString &collectionFileName, const QVariantList &args)
     : QObject(parent)
     , m_engine(QStandardPaths::writableLocation(QStandardPaths::DataLocation)+'/'+collectionFileName)
 {
     Q_UNUSED(args);
     if( !m_engine.setupData() ) {
         qWarning() << "Couldn't setup QtHelp Collection file";
     }
 }
 
+
+QtHelpProviderAbstract::~QtHelpProviderAbstract()
+{
+}
+
 IDocumentation::Ptr QtHelpProviderAbstract::documentationForDeclaration(Declaration* dec) const
 {
     QtHelpDocumentation::s_provider = const_cast<QtHelpProviderAbstract*>(this);
     if(dec) {
         static const IndexedString qmlJs("QML/JS");
         bool isQML;
         QStringList idParts;
 
         {
             DUChainReadLocker lock;
             isQML = dec->topContext()->parsingEnvironmentFile()->language() == qmlJs;
             idParts = dec->qualifiedIdentifier().toStringList();
         }
 
         QString id;
         if(isQML && !idParts.isEmpty()) {
             id = QLatin1String("QML.");
         }
 
         if(!idParts.isEmpty()) {
             id += idParts.join(QLatin1String("::"));
             QMap<QString, QUrl> links=m_engine.linksForIdentifier(id);
 
             if(!links.isEmpty())
                 return IDocumentation::Ptr(new QtHelpDocumentation(id, links));
         }
     }
 
     return {};
 }
 
 QAbstractListModel* QtHelpProviderAbstract::indexModel() const
 {
     QtHelpDocumentation::s_provider = const_cast<QtHelpProviderAbstract*>(this);
     return m_engine.indexModel();
 }
 
 IDocumentation::Ptr QtHelpProviderAbstract::documentationForIndex(const QModelIndex& idx) const
 {
     QtHelpDocumentation::s_provider = const_cast<QtHelpProviderAbstract*>(this);
     QString name=idx.data(Qt::DisplayRole).toString();
     return IDocumentation::Ptr(new QtHelpDocumentation(name, m_engine.indexModel()->linksForKeyword(name)));
 }
 
 void QtHelpProviderAbstract::jumpedTo(const QUrl& newUrl) const
 {
     QtHelpDocumentation::s_provider = const_cast<QtHelpProviderAbstract*>(this);
     QMap<QString, QUrl> info;
     info.insert(newUrl.toString(), newUrl);
     IDocumentation::Ptr doc(new QtHelpDocumentation(newUrl.toString(), info));
     emit addHistory(doc);
 }
 
 IDocumentation::Ptr QtHelpProviderAbstract::homePage() const
 {
     QtHelpDocumentation::s_provider = const_cast<QtHelpProviderAbstract*>(this);
     return IDocumentation::Ptr(new HomeDocumentation);
 }
 
 bool QtHelpProviderAbstract::isValid() const
 {
     return !m_engine.registeredDocumentations().isEmpty();
 }
diff --git a/documentation/qthelp/qthelpproviderabstract.h b/documentation/qthelp/qthelpproviderabstract.h
index 550b4cabcb..1f5f1b28fb 100644
--- a/documentation/qthelp/qthelpproviderabstract.h
+++ b/documentation/qthelp/qthelpproviderabstract.h
@@ -1,58 +1,58 @@
 /*  This file is part of KDevelop
     Copyright 2009 Aleix Pol <aleixpol@kde.org>
     Copyright 2009 David Nolden <david.nolden.kdevelop@art-master.de>
     Copyright 2010 Benjamin Port <port.benjamin@gmail.com>
 
     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.
 */
 
 #ifndef QTHELPPROVIDERABSTRACT_H
 #define QTHELPPROVIDERABSTRACT_H
 
 #include <interfaces/idocumentationprovider.h>
 #include <QObject>
 #include <QString>
 #include <QUrl>
 #include <QVariantList>
 #include <QHelpEngine>
 
-
 class QtHelpProviderAbstract : public QObject, public KDevelop::IDocumentationProvider
 {
     Q_OBJECT
     Q_INTERFACES( KDevelop::IDocumentationProvider )
 public:
     QtHelpProviderAbstract(QObject *parent, const QString &collectionFileName, const QVariantList & args);
+    virtual ~QtHelpProviderAbstract();
     KDevelop::IDocumentation::Ptr documentationForDeclaration (KDevelop::Declaration*) const override;
 
     KDevelop::IDocumentation::Ptr documentationForIndex(const QModelIndex& idx) const override;
     QAbstractListModel* indexModel() const override;
 
     KDevelop::IDocumentation::Ptr homePage() const override;
 
     /// @return False in case we failed to load any documentation files, else true
     bool isValid() const;
 
     QHelpEngine* engine() { return &m_engine; }
 public slots:
     void jumpedTo(const QUrl& newUrl) const;
 signals:
     void addHistory(const KDevelop::IDocumentation::Ptr& doc) const override;
 protected:
     QHelpEngine m_engine;
 };
 
 #endif // QTHELPPROVIDERABSTRACT_H