diff --git a/CDT-commonTypes.xsd b/CDT-commonTypes.xsd
index 82df607b7d3ccb8cedaedefce8d62281f6575010..47fa0ca4ec112451dcd0d7067c87e593b6755248 100644
--- a/CDT-commonTypes.xsd
+++ b/CDT-commonTypes.xsd
@@ -1475,6 +1475,7 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 						<xs:element name="target" type="xs:anyURI"/>
 						<xs:element name="requestsSent" type="xs:nonNegativeInteger"/>
 						<xs:element name="responsesReceived" type="xs:nonNegativeInteger"/>
+						<xs:element name="notificationEventCount" type="xs:nonNegativeInteger"/>
 					</xs:sequence>
 				</xs:complexType>
 			</xs:element>