diff --git a/typo3/sysext/backend/Classes/Form/FormDataProvider/TcaRecordTitle.php b/typo3/sysext/backend/Classes/Form/FormDataProvider/TcaRecordTitle.php
index 0f07e978fd5f2c94a38b4fc8cdea2d7a03d443ee..cf7933c0ce5af9a81b26a8b3a3dca19f2eab5b14 100644
--- a/typo3/sysext/backend/Classes/Form/FormDataProvider/TcaRecordTitle.php
+++ b/typo3/sysext/backend/Classes/Form/FormDataProvider/TcaRecordTitle.php
@@ -158,7 +158,7 @@ class TcaRecordTitle implements FormDataProviderInterface
             case 'inline':
                 $recordTitle = $this->getRecordTitleForInlineType(
                     $rawValue,
-                    $result['processedTca']['columns'][$fieldName]['children']
+                    $result['processedTca']['columns'][$fieldName]['children'] ?? []
                 );
                 break;
             case 'select':