diff --git a/Classes/Backend/Preview/PageLayout.php b/Classes/Backend/Preview/PageLayout.php
index b26496af..b15493b9 100644
--- a/Classes/Backend/Preview/PageLayout.php
+++ b/Classes/Backend/Preview/PageLayout.php
@@ -21,6 +21,7 @@
 use TYPO3\CMS\Backend\Controller\Event\ModifyPageLayoutContentEvent;
 use TYPO3\CMS\Backend\Module\ModuleData;
 use TYPO3\CMS\Backend\Utility\BackendUtility;
+use TYPO3\CMS\Backend\View\PageViewMode;
 use TYPO3\CMS\ContentBlocks\DataProcessing\ContentBlockDataDecorator;
 use TYPO3\CMS\ContentBlocks\DataProcessing\ContentTypeResolver;
 use TYPO3\CMS\ContentBlocks\Definition\ContentType\ContentTypeInterface;
@@ -55,8 +56,8 @@ public function __invoke(ModifyPageLayoutContentEvent $event): void
         $request = $event->getRequest();
         /** @var ModuleData $moduleData */
         $moduleData = $request->getAttribute('moduleData');
-        $function = (int)($moduleData->get('function') ?? 0);
-        if ($function !== 1) {
+        $viewMode = PageViewMode::LayoutView::tryFrom((int)$moduleData->get('viewMode'));
+        if ($viewMode !== PageViewMode::LayoutView) {
             return;
         }
         $pageTypeTable = 'pages';