diff --git a/agents/mailfilteragent/mailfilteragent.cpp b/agents/mailfilteragent/mailfilteragent.cpp
index 7a3d2be94..903742810 100644
--- a/agents/mailfilteragent/mailfilteragent.cpp
+++ b/agents/mailfilteragent/mailfilteragent.cpp
@@ -381,6 +381,7 @@ void MailFilterAgent::showFilterLogDialog(qlonglong windowId)
 {
     if (!m_filterLogDialog) {
         m_filterLogDialog = new FilterLogDialog(nullptr);
+        m_filterLogDialog->setAttribute(Qt::WA_NativeWindow, true);
     }
     KWindowSystem::setMainWindow(m_filterLogDialog->windowHandle(), windowId);
     m_filterLogDialog->show();
diff --git a/agents/sendlateragent/sendlateragent.cpp b/agents/sendlateragent/sendlateragent.cpp
index 1a4d8a7aa..20ad1d29c 100644
--- a/agents/sendlateragent/sendlateragent.cpp
+++ b/agents/sendlateragent/sendlateragent.cpp
@@ -138,7 +138,8 @@ void SendLaterAgent::configure(WId windowId)
 {
     QPointer<SendLaterConfigureDialog> dialog = new SendLaterConfigureDialog();
     if (windowId) {
-        //KWindowSystem::setMainWindow(dialog->windowHandle(), windowId);
+        dialog->setAttribute(Qt::WA_NativeWindow, true);
+        KWindowSystem::setMainWindow(dialog->windowHandle(), windowId);
     }
     connect(this, &SendLaterAgent::needUpdateConfigDialogBox, dialog.data(), &SendLaterConfigureDialog::slotNeedToReloadConfig);
     connect(dialog.data(), &SendLaterConfigureDialog::sendNow, this, &SendLaterAgent::slotSendNow);