diff --git a/src/widget/tool/screenshotgrabber.cpp b/src/widget/tool/screenshotgrabber.cpp
index d9cbb035f..a9bd01304 100644
--- a/src/widget/tool/screenshotgrabber.cpp
+++ b/src/widget/tool/screenshotgrabber.cpp
@@ -51,7 +51,6 @@ ScreenshotGrabber::ScreenshotGrabber(QObject* parent)
     window->installEventFilter(this);
 
     setupScene();
-    installEventFilter(this);
 }
 
 void ScreenshotGrabber::reInit()