diff --git a/plugins/dockers/overview/overviewwidget.h b/plugins/dockers/overview/overviewwidget.h
--- a/plugins/dockers/overview/overviewwidget.h
+++ b/plugins/dockers/overview/overviewwidget.h
@@ -96,6 +96,7 @@
     QTransform imageToPreviewTransform();
     QPolygonF previewPolygon();
 
+    QPixmap m_oldPixmap;
     QPixmap m_pixmap;
     QPointer<KisCanvas2> m_canvas;
 
diff --git a/plugins/dockers/overview/overviewwidget.cc b/plugins/dockers/overview/overviewwidget.cc
--- a/plugins/dockers/overview/overviewwidget.cc
+++ b/plugins/dockers/overview/overviewwidget.cc
@@ -167,9 +167,9 @@
 {
     Q_UNUSED(event);
     if (m_canvas) {
-        if (!m_pixmap.isNull()) {
+        if (!m_oldPixmap.isNull()) {
             QSize newSize = calculatePreviewSize();
-            m_pixmap = m_pixmap.scaled(newSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
+            m_pixmap = m_oldPixmap.scaled(newSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
         }
         m_imageIdleWatcher.startCountdown();
     }
@@ -266,6 +266,7 @@
 void OverviewWidget::updateThumbnail(QImage pixmap)
 {
     m_pixmap = QPixmap::fromImage(pixmap);
+    m_oldPixmap = m_pixmap.copy();
     update();
 }