diff --git a/src/Dravencms/Model/FileDownload/Entities/DownloadFileTranslation.php b/src/Dravencms/Model/FileDownload/Entities/DownloadFileTranslation.php
index af4d0af..de35e20 100644
--- a/src/Dravencms/Model/FileDownload/Entities/DownloadFileTranslation.php
+++ b/src/Dravencms/Model/FileDownload/Entities/DownloadFileTranslation.php
@@ -95,7 +95,7 @@ public function setDescription($description)
     /**
      * @param StructureFile $structureFile
      */
-    public function setStructureFile(StructureFile $structureFile)
+    public function setStructureFile(StructureFile $structureFile = null)
     {
         $this->structureFile = $structureFile;
     }
@@ -155,4 +155,4 @@ public function getStructureFile()
     {
         return $this->structureFile;
     }
-}
\ No newline at end of file
+}