diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
index 6e23e7f2..761dda72 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
@@ -458,7 +458,7 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 				if (currentItem.getProduct().getClassifications() != null && currentItem.getProduct().getClassifications().length > 0) {
 					for (IDesignatedProductClassification classification : currentItem.getProduct().getClassifications()) {
 						xml += "<ram:DesignatedProductClassification>"
-							+ "<ram:ClassCode listId=\"" + XMLTools.encodeXML(classification.getClassCode().getListID()) + "\"";
+							+ "<ram:ClassCode listID=\"" + XMLTools.encodeXML(classification.getClassCode().getListID()) + "\"";
 						if (classification.getClassCode().getListVersionID() != null) {
 							xml += " listVersionID=\"" + XMLTools.encodeXML(classification.getClassCode().getListVersionID()) + "\"";
 						}