diff --git a/library/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderTestCase.java b/library/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderTestCase.java
index 30d92d78..cb94525c 100644
--- a/library/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderTestCase.java
+++ b/library/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderTestCase.java
@@ -141,6 +141,11 @@ public abstract class MustangReaderTestCase extends TestCase implements IExporta
 			return "0815";
 		}
 
+		@Override
+		public String getVATID() {
+			return "DE0815";
+		}
+
 	}
 
 	protected class Item implements IZUGFeRDExportableItem {