diff --git a/Configuration/user.tsconfig b/Configuration/user.tsconfig
new file mode 100644
index 00000000..51f149c6
--- /dev/null
+++ b/Configuration/user.tsconfig
@@ -0,0 +1,3 @@
+# Allow backend users to drag and drop the new page type:
+# 137 = T3G\AgencyPack\Blog\Constants::DOKTYPE_BLOG_POST
+options.pageTree.doktypesToShowInNewPageDragArea := addToList(137)
diff --git a/ext_tables.php b/ext_tables.php
index 7aa2f8e1..a7016853 100644
--- a/ext_tables.php
+++ b/ext_tables.php
@@ -10,6 +10,7 @@
 use T3G\AgencyPack\Blog\Constants;
 use TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider;
 use TYPO3\CMS\Core\Imaging\IconRegistry;
+use TYPO3\CMS\Core\Information\Typo3Version;
 use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
@@ -63,7 +64,9 @@
     $iconRegistry->registerIcon($identifier, SvgIconProvider::class, ['source' => $path]);
 }
 
-// Allow backend users to drag and drop the new page type:
-ExtensionManagementUtility::addUserTSConfig('
-    options.pageTree.doktypesToShowInNewPageDragArea := addToList(' . Constants::DOKTYPE_BLOG_POST . ')
-');
+// Replaced with Configuration/user.tsconfig in v13
+if ((new Typo3Version())->getMajorVersion() < 13) {
+    ExtensionManagementUtility::addUserTSConfig('
+        options.pageTree.doktypesToShowInNewPageDragArea := addToList(' . Constants::DOKTYPE_BLOG_POST . ')
+    ');
+}