diff --git a/EnvelopeGenerator.Common/Models/DocumentModel.vb b/EnvelopeGenerator.Common/Models/DocumentModel.vb
index eac292c7..524dd62e 100644
--- a/EnvelopeGenerator.Common/Models/DocumentModel.vb
+++ b/EnvelopeGenerator.Common/Models/DocumentModel.vb
@@ -18,6 +18,7 @@ Public Class DocumentModel
 
     Private Function ToDocument(pRow As DataRow, pReceiverId As Integer) As EnvelopeDocument
         Dim oDocumentId = pRow.ItemEx("GUID", 0)
+        Dim byteDataObj = pRow.Item("BYTE_DATA")
         Return New EnvelopeDocument() With {
             .Id = oDocumentId,
             .EnvelopeId = pRow.ItemEx("ENVELOPE_ID", 0),
@@ -26,7 +27,7 @@ Public Class DocumentModel
             .FileNameOriginal = pRow.ItemEx("FILENAME_ORIGINAL", ""),
             .IsTempFile = False,
             .Elements = ElementModel.List(oDocumentId, pReceiverId),
-            .ByteData = DirectCast(pRow.Item("BYTE_DATA"), Byte())
+            .ByteData = If(byteDataObj Is DBNull.Value, Nothing, DirectCast(byteDataObj, Byte()))
         }
     End Function