diff --git a/Classes/EventListener/ModifyFileDumpEventListener.php b/Classes/EventListener/ModifyFileDumpEventListener.php
index 134b3d8..6f5998c 100644
--- a/Classes/EventListener/ModifyFileDumpEventListener.php
+++ b/Classes/EventListener/ModifyFileDumpEventListener.php
@@ -421,6 +421,6 @@ protected function getHttpRange(int $fileSize): array
         if ($start < 0 || $start > $end) {
             return [];
         }
-        return [$start, $end];
+        return [(int)$start, (int)$end];
     }
 }