diff --git a/CDT-commonTypes.xsd b/CDT-commonTypes.xsd
index fd91fad2fcc75699ae425fdf2766d4ff648f02b3..0c9a4c714c3f1bcc04dec28b67c22cc66b57aba6 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>