diff --git a/mainwindow.cc b/mainwindow.cc
index 6e7b8062..7554266e 100644
--- a/mainwindow.cc
+++ b/mainwindow.cc
@@ -914,7 +914,7 @@ MainWindow::MainWindow( Config::Class & cfg_ ):
 void MainWindow::clipboardChange( )
 {
   qDebug() << "clipboard change ," << scanPopup.get();
-  if( scanPopup )
+  if( scanPopup && enableScanningAction->isChecked() )
   {
     scanPopup->translateWordFromClipboard();
   }