diff --git a/snapshotview.cpp b/snapshotview.cpp
--- a/snapshotview.cpp
+++ b/snapshotview.cpp
@@ -34,5 +34,6 @@ SnapShotView::~SnapShotView()
 
 void SnapShotView::closeEvent(QCloseEvent *event)
 {
+    QMainWindow::closeEvent(event);
     emit closed();
 }