diff --git a/src/config.cc b/src/config.cc
index 6843b5d6..5e411a13 100644
--- a/src/config.cc
+++ b/src/config.cc
@@ -1107,6 +1107,11 @@ Class load()
   if ( !mainWindowGeometry.isNull() )
     c.mainWindowGeometry = QByteArray::fromBase64( mainWindowGeometry.toElement().text().toLatin1() );
 
+  QDomNode mainWindowMaximized = root.namedItem( "mainWindowMaximized" );
+
+  if ( !mainWindowMaximized.isNull() )
+    c.mainWindowMaximized = ( mainWindowMaximized.toElement().text() == "1" );
+
   QDomNode dictInfoGeometry = root.namedItem( "dictInfoGeometry" );
 
   if ( !dictInfoGeometry.isNull() )
@@ -2095,6 +2100,10 @@ void save( Class const & c )
     opt.appendChild( dd.createTextNode( QString::fromLatin1( c.mainWindowGeometry.toBase64() ) ) );
     root.appendChild( opt );
 
+    opt = dd.createElement( "mainWindowMaximized" );
+    opt.appendChild( dd.createTextNode( c.mainWindowMaximized ? "1" : "0" ) );
+    root.appendChild( opt );
+
     opt = dd.createElement( "dictInfoGeometry" );
     opt.appendChild( dd.createTextNode( QString::fromLatin1( c.dictInfoGeometry.toBase64() ) ) );
     root.appendChild( opt );
diff --git a/src/config.hh b/src/config.hh
index 7680e50c..fcc365aa 100644
--- a/src/config.hh
+++ b/src/config.hh
@@ -866,6 +866,7 @@ struct Class
 
   QByteArray mainWindowState;    // Binary state saved by QMainWindow
   QByteArray mainWindowGeometry; // Geometry saved by QMainWindow
+  bool mainWindowMaximized = false;
 
   MutedDictionaries mutedDictionaries;      // Disabled via dictionary bar
   MutedDictionaries popupMutedDictionaries; // Disabled via dictionary bar in popup
diff --git a/src/ui/mainwindow.cc b/src/ui/mainwindow.cc
index 40a8690e..ec87c785 100644
--- a/src/ui/mainwindow.cc
+++ b/src/ui/mainwindow.cc
@@ -746,6 +746,10 @@ MainWindow::MainWindow( Config::Class & cfg_ ):
   if ( cfg.mainWindowGeometry.size() )
     restoreGeometry( cfg.mainWindowGeometry );
 
+  if ( cfg.mainWindowMaximized ) {
+    showMaximized();
+  }
+
 #if defined( Q_OS_LINUX )
   #if ( QT_VERSION >= QT_VERSION_CHECK( 6, 0, 0 ) )
   defaultInterfaceStyle = QApplication::style()->name();
@@ -1214,6 +1218,7 @@ void MainWindow::commitData()
     // Save MainWindow state and geometry
     cfg.mainWindowState    = saveState();
     cfg.mainWindowGeometry = saveGeometry();
+    cfg.mainWindowMaximized = isMaximized();
 
     // Save popup window state and geometry
     if ( scanPopup )