diff --git a/VectoCore/VectoCoreTest/XML/Reports/ManufacturerReportWriterTest.cs b/VectoCore/VectoCoreTest/XML/Reports/ManufacturerReportWriterTest.cs
index cd07540c459566aed3773c04bdc91063be1e830a..c9c5a2f65931b2f324ce6ab84a2f53c4587d72c6 100644
--- a/VectoCore/VectoCoreTest/XML/Reports/ManufacturerReportWriterTest.cs
+++ b/VectoCore/VectoCoreTest/XML/Reports/ManufacturerReportWriterTest.cs
@@ -24,6 +24,7 @@ using TUGraz.VectoCore.OutputData.XML.DeclarationReports.ManufacturerReport.Manu
 using TUGraz.VectoCore.OutputData.XML.DeclarationReports.ManufacturerReport.ManufacturerReport_0_9.ManufacturerReportXMLTypeWriter;
 using TUGraz.VectoCore.Tests.Integration.CompletedBus;
 using TUGraz.VectoCore.Tests.Models.Simulation;
+using TUGraz.VectoCore.Utils;
 
 namespace TUGraz.VectoCore.Tests.XML.Reports
 {
@@ -90,17 +91,34 @@ namespace TUGraz.VectoCore.Tests.XML.Reports
 			var error = false;
 
 			try {
-				var schemas = XmlSchemaSet(
-					(Path.GetFullPath("../../../../VectoCore/Resources/XSD/VectoOutputManufacturer.0.9.xsd"),
-						"urn:tugraz:ivt:VectoAPI:DeclarationOutput:v0.9"),
-					(Path.GetFullPath("../../../../VectoCore/Resources/XSD/VectoOutputCustomer.0.9.xsd"),
-						"urn:tugraz:ivt:VectoAPI:CustomerOutput:v0.9"));
+
+				var schemaSet = new XmlSchemaSet() {
+					XmlResolver = new XmlUrlResolver()
+				};
+
+				XmlSchema schema;
+				using (var reader = XmlReader.Create(
+							Path.GetFullPath("../../../../VectoCore/Resources/XSD/VectoOutputManufacturer.0.9.xsd")))
+				{
+					schema = XmlSchema.Read(reader, null);
+				}
+
+				schemaSet.Add(schema);
+
+				using (var reader = XmlReader.Create(
+							Path.GetFullPath("../../../../VectoCore/Resources/XSD/VectoOutputCustomer.0.9.xsd")))
+				{
+					schema = XmlSchema.Read(reader, null);
+				}
+
+				schemaSet.Add(schema);
+				
 
 
-				document.Validate(schemas, (sender, args) => {
+                document.Validate(schemaSet, (sender, args) => {
 					error = true;
 
-					TestContext.WriteLine(sender.ToString());
+					TestContext.WriteLine(sender?.ToString());
 					TestContext.WriteLine(args.Message);
 				});
 			} finally {
@@ -109,6 +127,7 @@ namespace TUGraz.VectoCore.Tests.XML.Reports
 			return !error;
 		}
 
+
 		private static XmlSchemaSet XmlSchemaSet(params (string path, string targetNamespace)[] paths)
 		{
 			XmlSchemaSet schemas = new XmlSchemaSet();