diff --git a/target/schematron/PEPPOLBIS-T120.sch b/target/schematron/PEPPOLBIS-T120.sch
index 0b39a224..9c1f10a7 100644
--- a/target/schematron/PEPPOLBIS-T120.sch
+++ b/target/schematron/PEPPOLBIS-T120.sch
@@ -1809,8 +1809,8 @@
                  test="((cbc:OutstandingQuantity) and (cbc:OutstandingReason)) or not(cbc:OutstandingQuantity)"
                  flag="warning">An outstanding quantity reason SHOULD be provided if the despatch line contains an outstanding quantity</assert>
 		       <assert id="PEPPOL-T120-R040"
-                 test="((cac:Item/cac:CommodityClassification/ItemClassificationCode/listID) = ZZZ) and not (cac:Item/cac:CommodityClassification/ItemClassificationCode/name)"
-                 flag="fatal">A name must be provided if the listID is "ZZZ".</assert>
+                 test="((cac:Item/cac:CommodityClassification/ItemClassificationCode/listID) = 'ZZZ' and not (cac:Item/cac:CommodityClassification/ItemClassificationCode/name)) or (cac:Item/cac:CommodityClassification/ItemClassificationCode/listID) != 'ZZZ'"
+                 flag="warning">A name must be provided if the listID is "ZZZ".</assert>
 	     </rule>
 	
 	     <rule context="cac:AdditionalDocumentReference">