diff --git a/plugins/platforms/virtual/virtual_output.cpp b/plugins/platforms/virtual/virtual_output.cpp
index e402f8ca4..7f34f7e58 100644
--- a/plugins/platforms/virtual/virtual_output.cpp
+++ b/plugins/platforms/virtual/virtual_output.cpp
@@ -1,42 +1,34 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2018 Roman Gilg <subdiff@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, see <http://www.gnu.org/licenses/>.
 *********************************************************************/
 #include "virtual_output.h"
 
 namespace KWin
 {
 
 VirtualOutput::VirtualOutput(QObject *parent)
     : QObject(parent)
 {
 }
 
-VirtualOutput::VirtualOutput(const VirtualOutput &o)
-    : m_geo(o.m_geo),
-      m_outputScale(o.m_outputScale),
-      m_gammaSize(o.m_gammaSize),
-      m_gammaResult(o.m_gammaResult)
-{
-}
-
 VirtualOutput::~VirtualOutput()
 {
 }
 
 }
diff --git a/plugins/platforms/virtual/virtual_output.h b/plugins/platforms/virtual/virtual_output.h
index 762ed1eb3..ecc7233ce 100644
--- a/plugins/platforms/virtual/virtual_output.h
+++ b/plugins/platforms/virtual/virtual_output.h
@@ -1,55 +1,55 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2018 Roman Gilg <subdiff@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, see <http://www.gnu.org/licenses/>.
 *********************************************************************/
 #ifndef KWIN_VIRTUAL_OUTPUT_H
 #define KWIN_VIRTUAL_OUTPUT_H
 
 #include <QObject>
 #include <QRect>
 
 namespace KWin
 {
 class VirtualBackend;
 
 class VirtualOutput : public QObject
 {
     Q_OBJECT
 
 public:
     VirtualOutput(QObject *parent = nullptr);
-    VirtualOutput(const VirtualOutput &o);
     virtual ~VirtualOutput();
 
     QRect geometry() const {
         return m_geo;
     }
 
 private:
+    Q_DISABLE_COPY(VirtualOutput);
     friend class VirtualBackend;
 
     QRect m_geo;
     qreal m_outputScale = 1;
 
     int m_gammaSize = 200;
     bool m_gammaResult = true;
 };
 
 }
 
 #endif