diff --git a/src/OrderDocumentPdfMerger.php b/src/OrderDocumentPdfMerger.php
index 4dfd727..9882743 100644
--- a/src/OrderDocumentPdfMerger.php
+++ b/src/OrderDocumentPdfMerger.php
@@ -71,7 +71,7 @@ protected function getXmlContent(): string
         if ($this->xmlDataIsFile()) {
             $xmlContent = file_get_contents($this->xmlDataOrFilename);
             if ($xmlContent === false) {
-                throw new OrderFileNotReadableException('Could not read XML file');
+                throw new OrderFileNotReadableException($this->xmlDataOrFilename);
             }
         } else {
             $xmlContent = $this->xmlDataOrFilename;