diff --git a/src/dolphindockwidget.cpp b/src/dolphindockwidget.cpp
index 726338377..32d25702a 100644
--- a/src/dolphindockwidget.cpp
+++ b/src/dolphindockwidget.cpp
@@ -1,96 +1,88 @@
 /***************************************************************************
  *   Copyright (C) 2010 by Peter Penz <peter.penz19@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 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 "dolphindockwidget.h"
 
 #include <QStyle>
 
 namespace {
     // Disable the 'Floatable' feature, i.e., the possibility to drag the
     // dock widget out of the main window. This works around problems like
     // https://bugs.kde.org/show_bug.cgi?id=288629
     // https://bugs.kde.org/show_bug.cgi?id=322299
     const QDockWidget::DockWidgetFeatures DefaultDockWidgetFeatures = QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable;
 }
 
  // Empty titlebar for the dock widgets when "Lock Layout" has been activated.
 class DolphinDockTitleBar : public QWidget
 {
     Q_OBJECT
 
 public:
     explicit DolphinDockTitleBar(QWidget* parent = nullptr) : QWidget(parent) {}
     ~DolphinDockTitleBar() override {}
 
     QSize minimumSizeHint() const override
     {
         const int border = style()->pixelMetric(QStyle::PM_DockWidgetTitleBarButtonMargin);
         return QSize(border, border);
     }
 
     QSize sizeHint() const override
     {
         return minimumSizeHint();
     }
 };
 
 DolphinDockWidget::DolphinDockWidget(const QString& title, QWidget* parent, Qt::WindowFlags flags) :
     QDockWidget(title, parent, flags),
     m_locked(false),
     m_dockTitleBar(nullptr)
 {
     setFeatures(DefaultDockWidgetFeatures);
 }
 
-DolphinDockWidget::DolphinDockWidget(QWidget* parent, Qt::WindowFlags flags) :
-    QDockWidget(parent, flags),
-    m_locked(false),
-    m_dockTitleBar(nullptr)
-{
-    setFeatures(DefaultDockWidgetFeatures);
-}
-
 DolphinDockWidget::~DolphinDockWidget()
 {
 }
 
 void DolphinDockWidget::setLocked(bool lock)
 {
     if (lock != m_locked) {
         m_locked = lock;
 
         if (lock) {
             if (!m_dockTitleBar) {
                 m_dockTitleBar = new DolphinDockTitleBar(this);
             }
             setTitleBarWidget(m_dockTitleBar);
             setFeatures(QDockWidget::NoDockWidgetFeatures);
         } else {
             setTitleBarWidget(nullptr);
             setFeatures(DefaultDockWidgetFeatures);
         }
     }
 }
 
 bool DolphinDockWidget::isLocked() const
 {
     return m_locked;
 }
 
 #include "dolphindockwidget.moc"
diff --git a/src/dolphindockwidget.h b/src/dolphindockwidget.h
index c4fcbf753..0b745f083 100644
--- a/src/dolphindockwidget.h
+++ b/src/dolphindockwidget.h
@@ -1,49 +1,48 @@
 /***************************************************************************
  *   Copyright (C) 2010 by Peter Penz <peter.penz19@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 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            *
  ***************************************************************************/
 
 #ifndef DOLPHIN_DOCK_WIDGET_H
 #define DOLPHIN_DOCK_WIDGET_H
 
 #include <QDockWidget>
 
 /**
  * @brief Extends QDockWidget to be able to get locked.
  */
 class DolphinDockWidget : public QDockWidget
 {
     Q_OBJECT
 
 public:
-    explicit DolphinDockWidget(const QString& title, QWidget* parent = nullptr, Qt::WindowFlags flags = nullptr);
-    explicit DolphinDockWidget(QWidget* parent = nullptr, Qt::WindowFlags flags = nullptr);
+    explicit DolphinDockWidget(const QString& title = QString(), QWidget* parent = nullptr, Qt::WindowFlags flags = nullptr);
     ~DolphinDockWidget() override;
 
     /**
      * @param lock If \a lock is true, the title bar of the dock-widget will get hidden so
      *             that it is not possible for the user anymore to move or undock the dock-widget.
      */
     void setLocked(bool lock);
     bool isLocked() const;
 
 private:
     bool m_locked;
     QWidget* m_dockTitleBar;
 };
 
 #endif