diff --git a/Classes/Domain/Index/TcaIndexer.php b/Classes/Domain/Index/TcaIndexer.php
index 9592b65..5cf6988 100644
--- a/Classes/Domain/Index/TcaIndexer.php
+++ b/Classes/Domain/Index/TcaIndexer.php
@@ -120,8 +120,11 @@ class TcaIndexer implements IndexerInterface
             '',
             (int) $offset . ',' . (int) $limit
         );
-        $this->tcaTableService->filterRecordsByRootLineBlacklist($records);
+        if ($records === null) {
+            return null;
+        }
 
+        $this->tcaTableService->filterRecordsByRootLineBlacklist($records);
         foreach ($records as &$record) {
             $this->tcaTableService->prepareRecord($record);
         }