diff --git a/CDT-enumerationTypes.xsd b/CDT-enumerationTypes.xsd
index 82885a2b4ebe094a808ac3d3cfaaed4e102813c5..b9948bdcc2b4f7aff84e481ac8c10d85a8a74308 100644
--- a/CDT-enumerationTypes.xsd
+++ b/CDT-enumerationTypes.xsd
@@ -419,6 +419,8 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 			<xs:enumeration value="4126" />    
 			<!-- OPERATION_DENIED_BY_REMOTE_ENTITY -->
 			<xs:enumeration value="4127" />    
+			<!-- SERVICE_SUBSCRIPTION_NOT_ESTABLISHED -->
+			<xs:enumeration value="4128" />    
 			<!-- ONTOLOGY_MAPPING_ALGORITHM_NOT_AVAILABLE -->
 			<xs:enumeration value="4130" />    
 			<!-- ONTOLOGY_MAPPING_POLICY_NOT_MATCHED -->