diff --git a/Interfaces/ZUGFeRDInterface.vb b/Interfaces/ZUGFeRDInterface.vb
index f6abb30a..cdcb3eb2 100644
--- a/Interfaces/ZUGFeRDInterface.vb
+++ b/Interfaces/ZUGFeRDInterface.vb
@@ -43,7 +43,7 @@ Public Class ZUGFeRDInterface
 
     Private AllowedFilenames As New List(Of String)
 
-    Public Enum ErrorType1
+    Public Enum ErrorType
         NoValidFile
         NoZugferd
         NoValidZugferd