diff --git a/Interfaces/My Project/AssemblyInfo.vb b/Interfaces/My Project/AssemblyInfo.vb
index dfb81214..461ce58c 100644
--- a/Interfaces/My Project/AssemblyInfo.vb	
+++ b/Interfaces/My Project/AssemblyInfo.vb	
@@ -13,7 +13,7 @@ Imports System.Runtime.InteropServices
 <Assembly: AssemblyCompany("Digital Data")>
 <Assembly: AssemblyProduct("Modules.Interfaces")>
 <Assembly: AssemblyCopyright("Copyright © 2025")>
-<Assembly: AssemblyTrademark("2.2.3.0")>
+<Assembly: AssemblyTrademark("2.2.5.0")>
 
 <Assembly: ComVisible(False)>
 
@@ -31,5 +31,5 @@ Imports System.Runtime.InteropServices
 ' übernehmen, indem Sie "*" eingeben:
 ' <Assembly: AssemblyVersion("1.0.*")>
 
-<Assembly: AssemblyVersion("2.2.3.0")>
-<Assembly: AssemblyFileVersion("2.2.3.0")>
+<Assembly: AssemblyVersion("2.2.5.0")>
+<Assembly: AssemblyFileVersion("2.2.5.0")>
diff --git a/Interfaces/ZUGFeRDInterface/PropertyValues.vb b/Interfaces/ZUGFeRDInterface/PropertyValues.vb
index 4644afb4..e5402117 100644
--- a/Interfaces/ZUGFeRDInterface/PropertyValues.vb
+++ b/Interfaces/ZUGFeRDInterface/PropertyValues.vb
@@ -343,7 +343,13 @@ Public Class PropertyValues
 
             Return DoGetFinalPropValue(Value)
         Else
-            Return Value.ToString
+            ' Nothing kann auch der Default-Wert der Variablen bedeuten. Also auch 0.00
+            If IsNothing(Value) Then
+                Return String.Empty
+            Else
+                Return Value.ToString
+            End If
+
         End If
     End Function