diff --git a/src/HistorySizeWidget.cpp b/src/HistorySizeWidget.cpp
--- a/src/HistorySizeWidget.cpp
+++ b/src/HistorySizeWidget.cpp
@@ -74,7 +74,7 @@
             this, &Konsole::HistorySizeWidget::buttonClicked);
 
     _ui->historyLineSpinner->setSuffix(ki18ncp("@label:textbox Unit of scrollback", " line", " lines"));
-    this->setLineCount(HistorySizeWidget::DefaultLineCount);
+    setLineCount(HistorySizeWidget::DefaultLineCount);
 
     connect(_ui->historyLineSpinner,
             static_cast<void (KPluralHandlingSpinBox::*)(int)>(&KPluralHandlingSpinBox::valueChanged),
diff --git a/src/Session.cpp b/src/Session.cpp
--- a/src/Session.cpp
+++ b/src/Session.cpp
@@ -1486,10 +1486,10 @@
 {
     switch (role) {
     case 0:
-        this->setTitle(Session::NameRole, title);
+        setTitle(Session::NameRole, title);
         break;
     case 1:
-        this->setTitle(Session::DisplayedTitleRole, title);
+        setTitle(Session::DisplayedTitleRole, title);
 
         // without these, that title will be overridden by the expansion of
         // title format shortly after, which will confuses users.
@@ -1504,9 +1504,9 @@
 {
     switch (role) {
     case 0:
-        return this->title(Session::NameRole);
+        return title(Session::NameRole);
     case 1:
-        return this->title(Session::DisplayedTitleRole);
+        return title(Session::DisplayedTitleRole);
     default:
         return QString();
     }
@@ -1516,21 +1516,21 @@
 {
     switch (context) {
     case 0:
-        this->setTabTitleFormat(Session::LocalTabTitle, format);
+        setTabTitleFormat(Session::LocalTabTitle, format);
         break;
     case 1:
-        this->setTabTitleFormat(Session::RemoteTabTitle, format);
+        setTabTitleFormat(Session::RemoteTabTitle, format);
         break;
     }
 }
 
 QString Session::tabTitleFormat(int context) const
 {
     switch (context) {
     case 0:
-        return this->tabTitleFormat(Session::LocalTabTitle);
+        return tabTitleFormat(Session::LocalTabTitle);
     case 1:
-        return this->tabTitleFormat(Session::RemoteTabTitle);
+        return tabTitleFormat(Session::RemoteTabTitle);
     default:
         return QString();
     }
diff --git a/src/TerminalDisplay.cpp b/src/TerminalDisplay.cpp
--- a/src/TerminalDisplay.cpp
+++ b/src/TerminalDisplay.cpp
@@ -1080,12 +1080,12 @@
     // internal image - 2, so that the height of 'region' is strictly less
     // than the height of the internal image.
     QRect region = screenWindowRegion;
-    region.setBottom(qMin(region.bottom(), this->_lines - 2));
+    region.setBottom(qMin(region.bottom(), _lines - 2));
 
     // return if there is nothing to do
     if (!region.isValid()
             || (region.top() + abs(lines)) >= region.bottom()
-            || this->_lines <= region.height()) {
+            || _lines <= region.height()) {
         return;
     }
 
@@ -1114,23 +1114,23 @@
         scrollRect.setLeft(0);
         scrollRect.setRight(width() - scrollBarWidth - SCROLLBAR_CONTENT_GAP);
     }
-    void* firstCharPos = &_image[ region.top() * this->_columns ];
-    void* lastCharPos = &_image[(region.top() + abs(lines)) * this->_columns ];
+    void* firstCharPos = &_image[ region.top() * _columns ];
+    void* lastCharPos = &_image[(region.top() + abs(lines)) * _columns ];
 
     const int top = _contentRect.top() + (region.top() * _fontHeight);
     const int linesToMove = region.height() - abs(lines);
-    const int bytesToMove = linesToMove * this->_columns * sizeof(Character);
+    const int bytesToMove = linesToMove * _columns * sizeof(Character);
 
     Q_ASSERT(linesToMove > 0);
     Q_ASSERT(bytesToMove > 0);
 
     //scroll internal image
     if (lines > 0) {
         // check that the memory areas that we are going to move are valid
         Q_ASSERT((char*)lastCharPos + bytesToMove <
-                 (char*)(_image + (this->_lines * this->_columns)));
+                 (char*)(_image + (_lines * _columns)));
 
-        Q_ASSERT((lines * this->_columns) < _imageSize);
+        Q_ASSERT((lines * _columns) < _imageSize);
 
         //scroll internal image down
         memmove(firstCharPos , lastCharPos , bytesToMove);
@@ -1140,7 +1140,7 @@
     } else {
         // check that the memory areas that we are going to move are valid
         Q_ASSERT((char*)firstCharPos + bytesToMove <
-                 (char*)(_image + (this->_lines * this->_columns)));
+                 (char*)(_image + (_lines * _columns)));
 
         //scroll internal image up
         memmove(lastCharPos , firstCharPos , bytesToMove);
@@ -1247,8 +1247,8 @@
 
     setScroll(_screenWindow->currentLine() , _screenWindow->lineCount());
 
-    Q_ASSERT(this->_usedLines <= this->_lines);
-    Q_ASSERT(this->_usedColumns <= this->_columns);
+    Q_ASSERT(_usedLines <= _lines);
+    Q_ASSERT(_usedColumns <= _columns);
 
     int y, x, len;
 
@@ -1259,8 +1259,8 @@
 
     CharacterColor cf;       // undefined
 
-    const int linesToUpdate = qMin(this->_lines, qMax(0, lines));
-    const int columnsToUpdate = qMin(this->_columns, qMax(0, columns));
+    const int linesToUpdate = qMin(_lines, qMax(0, lines));
+    const int columnsToUpdate = qMin(_columns, qMax(0, columns));
 
     auto dirtyMask = new char[columnsToUpdate + 2];
     QRegion dirtyRegion;
@@ -1271,7 +1271,7 @@
     int dirtyLineCount = 0;
 
     for (y = 0; y < linesToUpdate; ++y) {
-        const Character* currentLine = &_image[y * this->_columns];
+        const Character* currentLine = &_image[y * _columns];
         const Character* const newLine = &newimg[y * columns];
 
         bool updateLine = false;
@@ -1374,16 +1374,16 @@
     if (linesToUpdate < _usedLines) {
         dirtyRegion |= QRect(_contentRect.left() + tLx ,
                              _contentRect.top() + tLy + _fontHeight * linesToUpdate ,
-                             _fontWidth * this->_columns ,
+                             _fontWidth * _columns ,
                              _fontHeight * (_usedLines - linesToUpdate));
     }
     _usedLines = linesToUpdate;
 
     if (columnsToUpdate < _usedColumns) {
         dirtyRegion |= QRect(_contentRect.left() + tLx + columnsToUpdate * _fontWidth ,
                              _contentRect.top() + tLy ,
                              _fontWidth * (_usedColumns - columnsToUpdate) ,
-                             _fontHeight * this->_lines);
+                             _fontHeight * _lines);
     }
     _usedColumns = columnsToUpdate;
 
diff --git a/src/ViewContainerTabBar.cpp b/src/ViewContainerTabBar.cpp
--- a/src/ViewContainerTabBar.cpp
+++ b/src/ViewContainerTabBar.cpp
@@ -266,7 +266,7 @@
     QPixmap tabPixmap(rect.width() + borderWidth,
                       rect.height() + borderWidth);
     QPainter painter(&tabPixmap);
-    painter.drawPixmap(0, 0, this->grab(rect));
+    painter.drawPixmap(0, 0, grab(rect));
     QPen borderPen;
     borderPen.setBrush(palette().dark());
     borderPen.setWidth(borderWidth);
diff --git a/src/ViewManager.cpp b/src/ViewManager.cpp
--- a/src/ViewManager.cpp
+++ b/src/ViewManager.cpp
@@ -1102,7 +1102,7 @@
 
 int ViewManager::sessionCount()
 {
-    return this->_sessionMap.size();
+    return _sessionMap.size();
 }
 
 QStringList ViewManager::sessionList()
@@ -1148,7 +1148,7 @@
 
     session->addEnvironmentEntry(QStringLiteral("KONSOLE_DBUS_WINDOW=/Windows/%1").arg(managerId()));
 
-    this->createView(session);
+    createView(session);
     session->run();
 
     return session->sessionId();
@@ -1170,7 +1170,7 @@
 
     session->addEnvironmentEntry(QStringLiteral("KONSOLE_DBUS_WINDOW=/Windows/%1").arg(managerId()));
 
-    this->createView(session);
+    createView(session);
     session->run();
 
     return session->sessionId();
@@ -1193,7 +1193,7 @@
 
     session->addEnvironmentEntry(QStringLiteral("KONSOLE_DBUS_WINDOW=/Windows/%1").arg(managerId()));
 
-    this->createView(session);
+    createView(session);
     session->run();
 
     return session->sessionId();
@@ -1211,22 +1211,22 @@
 
 void ViewManager::nextSession()
 {
-    this->nextView();
+    nextView();
 }
 
 void ViewManager::prevSession()
 {
-    this->previousView();
+    previousView();
 }
 
 void ViewManager::moveSessionLeft()
 {
-    this->moveActiveViewLeft();
+    moveActiveViewLeft();
 }
 
 void ViewManager::moveSessionRight()
 {
-    this->moveActiveViewRight();
+    moveActiveViewRight();
 }
 
 void ViewManager::setTabWidthToText(bool useTextWidth)
diff --git a/src/settings/GeneralSettings.cpp b/src/settings/GeneralSettings.cpp
--- a/src/settings/GeneralSettings.cpp
+++ b/src/settings/GeneralSettings.cpp
@@ -31,7 +31,7 @@
 
     connect(enableAllMessagesButton, &QPushButton::clicked, this, &Konsole::GeneralSettings::slotEnableAllMessages);
 
-    this->kcfg_ShowTerminalSizeHint->setVisible(false);
+    kcfg_ShowTerminalSizeHint->setVisible(false);
 }
 
 GeneralSettings::~GeneralSettings() = default;