diff --git a/v2_29_0/CDT-responsePrimitive-v2_29_0.xsd b/v2_29_0/CDT-responsePrimitive-v2_29_0.xsd
index 898ca5eef4b59345050abb8e4f5c56a60091e27a..b30e60fc51f36ebbd7af459ee68c5b07fb73ac50 100644
--- a/v2_29_0/CDT-responsePrimitive-v2_29_0.xsd
+++ b/v2_29_0/CDT-responsePrimitive-v2_29_0.xsd
@@ -159,7 +159,7 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
   
   <xs:complexType name="listOfChildResourceRef">    
     <xs:sequence>   
-      <xs:element name="resourceRef" type="m2m:childResourceRef" minOccurs="1" maxOccurs="unbounded" />      
+      <xs:element name="resourceRef" type="m2m:childResourceRef" minOccurs="0" maxOccurs="unbounded" />      
     </xs:sequence> 	       
   </xs:complexType>