diff --git a/src/qteletextmaker/mainwindow.cpp b/src/qteletextmaker/mainwindow.cpp
index 362ef58..df9ec94 100644
--- a/src/qteletextmaker/mainwindow.cpp
+++ b/src/qteletextmaker/mainwindow.cpp
@@ -358,6 +358,7 @@ void MainWindow::init()
 		m_textView->setRenderHints(QPainter::SmoothPixmapTransform);
 	m_textView->setBackgroundBrush(QBrush(QColor(32, 48, 96)));
 	m_zoomSlider->setValue(m_viewZoom);
+	setSceneDimensions();
 	setCentralWidget(m_textView);
 
 	connect(m_textWidget->document(), &TeletextDocument::cursorMoved, this, &MainWindow::updateCursorPosition);