diff --git a/Jobs/ZUGFeRD/EmailData.vb b/Jobs/ZUGFeRD/EmailData.vb
index 65d2ad7c..2b18b34b 100644
--- a/Jobs/ZUGFeRD/EmailData.vb
+++ b/Jobs/ZUGFeRD/EmailData.vb
@@ -1,5 +1,5 @@
 Public Class EmailData
     Public Attachment As String = ""
-    Public Subject As String
-    Public From As String
+    Public Subject As String = ""
+    Public From As String = ""
 End Class
\ No newline at end of file