diff --git a/v3_2_0/CDT-subscription-v3_2_0.xsd b/v3_2_0/CDT-subscription-v3_2_0.xsd
index 91712665dc06ae7a64f8ce968b380c0a1b3e4f55..2193822ced1b32cb98dacad2144f938ea198b99b 100644
--- a/v3_2_0/CDT-subscription-v3_2_0.xsd
+++ b/v3_2_0/CDT-subscription-v3_2_0.xsd
@@ -81,7 +81,7 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 			<xs:element name="expireAfter" type="m2m:timestamp" minOccurs="0" />
 			<xs:element name="sizeAbove" type="xs:nonNegativeInteger" minOccurs="0" />
 			<xs:element name="sizeBelow" type="xs:positiveInteger" minOccurs="0" />
-			<xs:element name="operationMonitor" type="m2m:operationMonitor" minOccurs="0" maxOccurs="unbounded" />
+			<xs:element name="operationMonitor" type="m2m:operationMonitor" minOccurs="0" maxOccurs="5" />
 			<xs:element name="attribute" type="m2m:attributeList" minOccurs="0" maxOccurs="1" />
 			<xs:element name="notificationEventType" type="m2m:notificationEventType" minOccurs="0" maxOccurs="5" />
 			<xs:element name="missingData" type="m2m:missingData" minOccurs="0" />