diff --git a/discover/DiscoverObject.cpp b/discover/DiscoverObject.cpp
--- a/discover/DiscoverObject.cpp
+++ b/discover/DiscoverObject.cpp
@@ -37,6 +37,7 @@
 #include <QGuiApplication>
 #include <QSortFilterProxyModel>
 #include <QTimer>
+#include <QSessionManager>
 
 // KDE includes
 #include <KAboutApplicationDialog>
@@ -279,6 +280,13 @@
 
     object->installEventFilter(this);
     connect(object, &QObject::destroyed, qGuiApp, &QCoreApplication::quit);
+
+    connect(qGuiApp, &QGuiApplication::commitDataRequest, this, [this](QSessionManager &sessionManager) {
+        if (ResourcesModel::global()->isBusy()) {
+            Q_EMIT preventedClose();
+            sessionManager.cancel();
+        }
+    });
 }
 
 bool DiscoverObject::eventFilter(QObject * object, QEvent * event)