diff --git a/MainWindow/DirtyIndicator.cpp b/MainWindow/DirtyIndicator.cpp
index d0fe6bf7..19672cce 100644
--- a/MainWindow/DirtyIndicator.cpp
+++ b/MainWindow/DirtyIndicator.cpp
@@ -1,93 +1,93 @@
 /* Copyright (C) 2003-2018 Jesper K. Pedersen <blackie@kde.org>
 
    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; see the file COPYING.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #include "DirtyIndicator.h"
 #include <kiconloader.h>
 #include <QPixmap>
 #include <QLabel>
 
-static MainWindow::DirtyIndicator* _instance = nullptr;
+static MainWindow::DirtyIndicator* s_instance = nullptr;
 bool MainWindow::DirtyIndicator::s_autoSaveDirty = false;
 bool MainWindow::DirtyIndicator::s_saveDirty = false;
 bool MainWindow::DirtyIndicator::s_suppressMarkDirty = false;
 
 MainWindow::DirtyIndicator::DirtyIndicator( QWidget* parent )
     :QLabel( parent )
 {
     m_dirtyPix = QPixmap( SmallIcon( QString::fromLatin1( "media-floppy" ) ) );
     setFixedWidth( m_dirtyPix.width() + 10);
-    _instance = this;
+    s_instance = this;
 
     // Might have been marked dirty even before the indicator had been created, by the database searching during loading.
     if ( s_saveDirty )
         markDirty();
 }
 
 void MainWindow::DirtyIndicator::suppressMarkDirty(bool state)
 {
     MainWindow::DirtyIndicator::s_suppressMarkDirty = state;
 }
 
 void MainWindow::DirtyIndicator::markDirty()
 {
     if (MainWindow::DirtyIndicator::s_suppressMarkDirty) {
         return;
     }
 
-    if ( _instance ) {
-        _instance->markDirtySlot();
+    if ( s_instance ) {
+        s_instance->markDirtySlot();
     } else {
         s_saveDirty = true;
         s_autoSaveDirty = true;
     }
 }
 
 void MainWindow::DirtyIndicator::markDirtySlot() {
     if (MainWindow::DirtyIndicator::s_suppressMarkDirty) {
         return;
     }
 
     s_saveDirty = true;
     s_autoSaveDirty = true;
     setPixmap( m_dirtyPix );
     emit dirty();
 }
 
 void MainWindow::DirtyIndicator::autoSaved()
 {
     s_autoSaveDirty= false;
 }
 
 void MainWindow::DirtyIndicator::saved()
 {
     s_autoSaveDirty = false;
     s_saveDirty = false;
     setPixmap( QPixmap() );
 }
 
 bool MainWindow::DirtyIndicator::isSaveDirty() const
 {
     return s_saveDirty;
 }
 
 bool MainWindow::DirtyIndicator::isAutoSaveDirty() const
 {
     return s_autoSaveDirty;
 }
 
 // vi:expandtab:tabstop=4 shiftwidth=4: