diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java
index 04bbb4cd..5a232747 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java
@@ -77,8 +77,6 @@ import jakarta.activation.DataSource;
 import jakarta.activation.FileDataSource;
 
 public class ZUGFeRDExporterFromA3 extends XRExporter implements IZUGFeRDExporter {
-	
-	private static final String XML_DESCRIPTION = "https://www.ferd-net.de/en/standards/zugferd/factur-x";
 
 	private boolean isFacturX = true;
 	
@@ -686,7 +684,8 @@ public class ZUGFeRDExporterFromA3 extends XRExporter implements IZUGFeRDExporte
 		}
 
 		PDFAttachGenericFile(doc, filename, relationship,
-			XML_DESCRIPTION, "text/xml", xmlProvider.getXML());
+			"Invoice metadata conforming to ZUGFeRD standard (http://www.ferd-net.de/front_content.php?idcat=231&lang=4)",
+			"text/xml", xmlProvider.getXML());
 
 		for (FileAttachment attachment : fileAttachments) {
 			PDFAttachGenericFile(doc, attachment.getFilename(), attachment.getRelation(), attachment.getDescription(), attachment.getMimetype(), attachment.getData());
diff --git a/library/src/test/resources/MustangBeispiel20221026.pdf b/library/src/test/resources/MustangBeispiel20221026.pdf
index 0be6aa95..cb86a426 100644
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diff --git a/library/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505.pdf b/library/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505.pdf
index 8d7376a1..d2bcf218 100644
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diff --git a/validator/src/test/resources/XMLinvalidV2PDF.pdf b/validator/src/test/resources/XMLinvalidV2PDF.pdf
index a82e9c9b..cd6fb11a 100644
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diff --git a/validator/src/test/resources/corruptedV2PDF.pdf b/validator/src/test/resources/corruptedV2PDF.pdf
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diff --git a/validator/src/test/resources/invalidPDF.pdf b/validator/src/test/resources/invalidPDF.pdf
index 780d609d..1dbd238a 100644
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diff --git a/validator/src/test/resources/invalidXMP-ParseError.pdf b/validator/src/test/resources/invalidXMP-ParseError.pdf
index f34074f9..838b1a8a 100644
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diff --git a/validator/src/test/resources/invalidXMP.pdf b/validator/src/test/resources/invalidXMP.pdf
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diff --git a/validator/src/test/resources/invalidXRechnung.pdf b/validator/src/test/resources/invalidXRechnung.pdf
index 9520a7db..8ce81ee1 100644
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diff --git a/validator/src/test/resources/validV2PDF.pdf b/validator/src/test/resources/validV2PDF.pdf
index 5252b74a..65761391 100644
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diff --git a/validator/src/test/resources/validXRechnung.pdf b/validator/src/test/resources/validXRechnung.pdf
index b3d4ce9a..9c9ecff2 100644
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