diff --git a/src/ui/mainwindow.cc b/src/ui/mainwindow.cc
index 3ae73757..68960506 100644
--- a/src/ui/mainwindow.cc
+++ b/src/ui/mainwindow.cc
@@ -679,8 +679,6 @@ MainWindow::MainWindow( Config::Class & cfg_ ):
 
   connect( &configEvents, &Config::Events::mutedDictionariesChanged, this, &MainWindow::mutedDictionariesChanged );
 
-  this->installEventFilter( this );
-
   ui.translateLine->installEventFilter( this );
   translateBox->translateLine()->installEventFilter( this );