diff --git a/plugins/platforms/virtual/virtual_output.cpp b/plugins/platforms/virtual/virtual_output.cpp
index f798ea9e8..05ba33660 100644
--- a/plugins/platforms/virtual/virtual_output.cpp
+++ b/plugins/platforms/virtual/virtual_output.cpp
@@ -1,48 +1,49 @@
 /********************************************************************
  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)
     : AbstractOutput()
 {
     Q_UNUSED(parent);
 
     setScale(1.);
 }
 
 VirtualOutput::~VirtualOutput()
 {
 }
 
 QSize VirtualOutput::pixelSize() const
 {
     return m_pixelSize;
 }
 
 void VirtualOutput::setGeometry(const QRect &geo)
 {
     m_pixelSize = geo.size();
+    setRawPhysicalSize(m_pixelSize);
     setGlobalPos(geo.topLeft());
 }
 
 }