diff --git a/docs/phpdocumentationwidget.cpp b/docs/phpdocumentationwidget.cpp
index 5472eac..3f9258c 100644
--- a/docs/phpdocumentationwidget.cpp
+++ b/docs/phpdocumentationwidget.cpp
@@ -1,99 +1,106 @@
 /*  This file is part of the KDevelop PHP Documentation Plugin
 
     Copyright 2012 Milian Wolff <mail@milianw.de>
 
     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 "phpdocumentationwidget.h"
 
 #include <QProgressBar>
 #include <QLabel>
 #include <QVBoxLayout>
 #include <QTemporaryFile>
 #include <QTextStream>
 
 #include <KLocalizedString>
 
 #include "phpdocsplugin.h"
 #include <documentation/standarddocumentationview.h>
 
 QTemporaryFile* createStyleSheet(QObject* parent)
 {
     QTemporaryFile* file = new QTemporaryFile(parent);
     bool ret = file->open();
     Q_ASSERT(ret);
     Q_UNUSED(ret);
 
     QTextStream ts(file);
     ts << ".page-tools { float: none !important; };";
     return file;
 }
 
 PhpDocumentationWidget::PhpDocumentationWidget(KDevelop::DocumentationFindWidget* find, const QUrl &url,
                                                PhpDocsPlugin* provider, QWidget* parent)
 : QStackedWidget(parent)
 , m_loading(new QWidget(this))
 , m_styleSheet(createStyleSheet(this))
 , m_provider(provider)
 {
     m_part = new KDevelop::StandardDocumentationView(find, this);
     m_part->page()->setLinkDelegationPolicy(QWebPage::DelegateAllLinks);
     addWidget(m_part);
     addWidget(m_loading);
 
     QProgressBar* progressbar = new QProgressBar;
     progressbar->setValue(0);
     progressbar->setMinimum(0);
     progressbar->setMaximum(100);
     progressbar->setAlignment(Qt::AlignCenter);
 
     connect( m_part, &KDevelop::StandardDocumentationView::loadProgress,
              progressbar, &QProgressBar::setValue );
 
     QVBoxLayout* layout = new QVBoxLayout;
     layout->addStretch();
     QLabel* label = new QLabel(i18n("...loading documentation..."));
     label->setAlignment(Qt::AlignCenter);
     layout->addWidget(label);
     layout->addWidget(progressbar);
     layout->addStretch();
     m_loading->setLayout(layout);
     setCurrentWidget(m_loading);
 
 
     connect(m_part, &KDevelop::StandardDocumentationView::linkClicked, this, &PhpDocumentationWidget::linkClicked);
     connect(m_part, &KDevelop::StandardDocumentationView::loadFinished, this, &PhpDocumentationWidget::documentLoaded);
 
     m_part->load( url );
 }
 
+PhpDocumentationWidget::~PhpDocumentationWidget()
+{
+    // make sure we don't get called by any of the m_part signals on shutdown, see also:
+    // https://codereview.qt-project.org/#/c/83800/
+    disconnect(m_part, 0, this, 0);
+}
+
 void PhpDocumentationWidget::linkClicked(const QUrl& url)
 {
     m_part->load(url);
     m_provider->addToHistory(url);
 }
 
 void PhpDocumentationWidget::documentLoaded()
 {
     m_part->settings()->setUserStyleSheetUrl(QUrl::fromLocalFile(m_styleSheet->fileName()));
 
     setCurrentWidget(m_part);
     removeWidget(m_loading);
     delete m_loading;
     m_loading = 0;
 }
diff --git a/docs/phpdocumentationwidget.h b/docs/phpdocumentationwidget.h
index 2322b3b..a7b83b6 100644
--- a/docs/phpdocumentationwidget.h
+++ b/docs/phpdocumentationwidget.h
@@ -1,57 +1,58 @@
 /*  This file is part of the KDevelop PHP Documentation Plugin
 
     Copyright 2012 Milian Wolff <mail@milianw.de>
 
     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 PHPDOCUMENTATIONWIDGET_H
 #define PHPDOCUMENTATIONWIDGET_H
 
 #include <QStackedWidget>
 
 class QTemporaryFile;
 class QUrl;
 
 namespace KDevelop {
     class StandardDocumentationView;
     class DocumentationFindWidget;
 }
 
 class PhpDocsPlugin;
 
 class PhpDocumentationWidget : public QStackedWidget
 {
     Q_OBJECT
 
 public:
     explicit PhpDocumentationWidget(KDevelop::DocumentationFindWidget* find, const QUrl &url,
                                     PhpDocsPlugin* provider, QWidget* parent = 0);
+    ~PhpDocumentationWidget();
 
 private slots:
     /// used to inject some custom CSS to alter the remote php.net site
     void documentLoaded();
     void linkClicked(const QUrl& url);
 
 private:
     KDevelop::StandardDocumentationView* m_part;
     QWidget* m_loading;
     QTemporaryFile* m_styleSheet;
     PhpDocsPlugin* m_provider;
 };
 
 #endif // PHPDOCUMENTATIONWIDGET_H