diff --git a/kcms/lookandfeel/package/contents/ui/main.qml b/kcms/lookandfeel/package/contents/ui/main.qml
index f32882da4..74749e548 100644
--- a/kcms/lookandfeel/package/contents/ui/main.qml
+++ b/kcms/lookandfeel/package/contents/ui/main.qml
@@ -1,120 +1,120 @@
 /*
    Copyright (c) 2018 Marco Martin <mart@kde.org>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License version 2 as published by the Free Software Foundation.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 import QtQuick 2.6
 import QtQuick.Layouts 1.1
 import QtQuick.Window 2.2
 import QtQuick.Controls 2.3 as QtControls
 import org.kde.kirigami 2.4 as Kirigami
 import org.kde.kconfig 1.0 // for KAuthorized
 import org.kde.kcm 1.1 as KCM
 
 KCM.GridViewKCM {
     KCM.ConfigModule.quickHelp: i18n("This module lets you choose the Look and Feel theme.")
 
     view.model: kcm.lookAndFeelModel
     view.currentIndex: kcm.selectedPluginIndex
     view.delegate: KCM.GridDelegate {
         id: delegate
 
         text: model.display
         toolTip: model.description
 
         thumbnailAvailable: model.screenshot
         thumbnail: Image {
             anchors.fill: parent
             source: model.screenshot || ""
             sourceSize: Qt.size(delegate.GridView.view.cellWidth * Screen.devicePixelRatio,
                                 delegate.GridView.view.cellHeight * Screen.devicePixelRatio)
         }
         actions: [
             Kirigami.Action {
                 visible: model.fullScreenPreview !== ""
                 iconName: "media-playback-start"
                 tooltip: i18n("Preview Theme")
                 onTriggered: {
                     previewWindow.url = model.fullScreenPreview;
                     previewWindow.showFullScreen();
                 }
             }
         ]
         onClicked: {
             kcm.selectedPlugin = model.pluginName;
             view.forceActiveFocus();
             resetCheckbox.checked = false;
         }
     }
 
     footer: ColumnLayout {
         Kirigami.InlineMessage {
             Layout.fillWidth: true
             type: Kirigami.MessageType.Warning
             text: i18n("Your desktop layout will be lost and reset to the default layout provided by the selected theme.")
             visible: resetCheckbox.checked
         }
 
         RowLayout {
             Layout.fillWidth: true
 
             QtControls.CheckBox {
                 id: resetCheckbox
                 checked: kcm.resetDefaultLayout
                 text: i18n("Use desktop layout from theme")
                 onCheckedChanged: kcm.resetDefaultLayout = checked;
             }
             Item {
                 Layout.fillWidth: true
             }
             QtControls.Button {
                 text: i18n("Get New Look and Feel Themes...")
                 icon.name: "get-hot-new-stuff"
                 onClicked: kcm.getNewStuff(this);
                 visible: KAuthorized.authorize("ghns")
             }
         }
     }
 
     Window {
         id: previewWindow
         property alias url: previewImage.source
         color: Qt.rgba(0, 0, 0, 0.7)
         MouseArea {
             anchors.fill: parent
             Image {
                 id: previewImage
                 anchors.centerIn: parent
                 fillMode: Image.PreserveAspectFit
                 width: Math.min(parent.width, sourceSize.width)
                 height: Math.min(parent.height, sourceSize.height)
             }
-            onClicked: previewWindow.visible = false;
+            onClicked: previewWindow.close()
             QtControls.ToolButton {
                 anchors {
                     top: parent.top
                     right: parent.right
                 }
                 icon.name: "window-close"
-                onClicked: previewWindow.visible = false;
+                onClicked: previewWindow.close()
             }
             Shortcut {
-                onActivated: previewWindow.visible = false;
+                onActivated: previewWindow.close()
                 sequence: "Esc"
             }
         }
     }
 }