diff --git a/ext_tables.php b/ext_tables.php
index ded8e98..1e8b938 100644
--- a/ext_tables.php
+++ b/ext_tables.php
@@ -37,10 +37,12 @@ call_user_func(
                 'EXT:templates_aide/Resources/Public/Css/backend/production-stage';
         }
 
-        $pageRenderer = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
-            \TYPO3\CMS\Core\Page\PageRenderer::class
-        );
-        $pageRenderer->loadRequireJsModule('TYPO3/CMS/TemplatesAide/NewContentElementWizardPreview');
+        if (TYPO3_MODE == 'BE') {
+            $pageRenderer = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
+                \TYPO3\CMS\Core\Page\PageRenderer::class
+            );
+            $pageRenderer->loadRequireJsModule('TYPO3/CMS/TemplatesAide/NewContentElementWizardPreview');
+        }
 
     }
-);
\ No newline at end of file
+);