diff --git a/kcms/lookandfeel/kcm.h b/kcms/lookandfeel/kcm.h
--- a/kcms/lookandfeel/kcm.h
+++ b/kcms/lookandfeel/kcm.h
@@ -30,7 +30,7 @@
 #include <Plasma/Package>
 #include <KQuickAddons/ConfigModule>
 
-class QQuickView;
+class QQuickItem;
 class QStandardItemModel;
 
 class KCMLookandFeel : public KQuickAddons::ConfigModule
@@ -108,7 +108,7 @@
 
     void loadModel();
 
-    Q_INVOKABLE void getNewStuff();
+    Q_INVOKABLE void getNewStuff(QQuickItem *ctx);
 
 public Q_SLOTS:
     void load() override;
diff --git a/kcms/lookandfeel/kcm.cpp b/kcms/lookandfeel/kcm.cpp
--- a/kcms/lookandfeel/kcm.cpp
+++ b/kcms/lookandfeel/kcm.cpp
@@ -36,11 +36,10 @@
 #include <KAutostart>
 #include <KRun>
 
-#include <QVBoxLayout>
-#include <QPushButton>
-#include <QMessageBox>
 #include <QQmlEngine>
 #include <QQmlContext>
+#include <QQuickItem>
+#include <QQuickWindow>
 #include <QStandardItemModel>
 #include <QX11Info>
 
@@ -106,13 +105,20 @@
 {
 }
 
-void KCMLookandFeel::getNewStuff()
+void KCMLookandFeel::getNewStuff(QQuickItem *ctx)
 {
     if (!m_newStuffDialog) {
         m_newStuffDialog = new KNS3::DownloadDialog( QLatin1String("lookandfeel.knsrc") );
         m_newStuffDialog.data()->setWindowTitle(i18n("Download New Look And Feel Packages"));
+        m_newStuffDialog->setWindowModality(Qt::WindowModal);
+        m_newStuffDialog->winId(); // so it creates the windowHandle();
         connect(m_newStuffDialog.data(), &KNS3::DownloadDialog::accepted, this,  &KCMLookandFeel::loadModel);
     }
+
+    if (ctx && ctx->window()) {
+        m_newStuffDialog->windowHandle()->setTransientParent(ctx->window());
+    }
+
     m_newStuffDialog.data()->show();
 }
 
diff --git a/kcms/lookandfeel/package/contents/ui/main.qml b/kcms/lookandfeel/package/contents/ui/main.qml
--- a/kcms/lookandfeel/package/contents/ui/main.qml
+++ b/kcms/lookandfeel/package/contents/ui/main.qml
@@ -80,7 +80,7 @@
             QtControls.Button {
                 text: i18n("Get New Looks...")
                 icon.name: "get-hot-new-stuff"
-                onClicked: kcm.getNewStuff();
+                onClicked: kcm.getNewStuff(this);
             }
         }
     }