diff --git a/Interfaces/ZUGFeRDInterface.vb b/Interfaces/ZUGFeRDInterface.vb
index b3e91f65..5278d344 100644
--- a/Interfaces/ZUGFeRDInterface.vb
+++ b/Interfaces/ZUGFeRDInterface.vb
@@ -288,7 +288,8 @@ Public Class ZUGFeRDInterface
             ' Extract XML attachments only!
             Dim oFiles = oEmbedExtractor.Extract(pPath, New List(Of String) From {"xml"})
             If Validate Then
-                Return _Validator.ValidateZUGFeRDDocument(HandleEmbeddedFiles(oFiles))
+                Dim oZugferdResult = HandleEmbeddedFiles(oFiles)
+                Return _Validator.ValidateZUGFeRDDocument(oZugferdResult)
             Else
                 ' Attachments are in this case the files that are embedded into a pdf file,
                 ' like for example the zugferd-invoice.xml file