diff --git a/OneM2M_Testcases_AE_Release_1.ttcn b/OneM2M_Testcases_AE_Release_1.ttcn
index 7826dde118589a6151d5b62394c5730b945cdc54..e6d811009352fbbdfe3cbe337ef0e4c004fd6ceb 100644
--- a/OneM2M_Testcases_AE_Release_1.ttcn
+++ b/OneM2M_Testcases_AE_Release_1.ttcn
@@ -634,7 +634,7 @@ module OneM2M_Testcases_AE_Release_1 {
 						var template UtTriggerPrimitive v_utRequest := m_utCreateAe;
 						var template RequestPrimitive v_createAe := mw_createAe;
 						var universal charstring v_action :=  __SCOPE__ & ": Please, send a valid AE CREATE Registration Request containing attribute ContentSerialization";
-						v_utRequest.requestPrimitive.primitiveContent.aE.contentSerialization := {applicationxml};
+						v_utRequest.requestPrimitive.primitiveContent.aE.contentSerialization := {xml};
 						v_utRequest.forcedFields := {{name := "contentSerialization", value_ := "UNINITIALIZED"}};
 						v_createAe.primitiveContent.aE.contentSerialization := ?;//Check value other than UNINITIALIZED, done by typing
 						v_cse1.start(f_AE_REG_CRE_002(v_utRequest,v_createAe,v_action));
@@ -1161,7 +1161,7 @@ module OneM2M_Testcases_AE_Release_1 {
 						var template RequestPrimitive v_expectedUpdateRequestAe;
 						var template UtTriggerPrimitive v_utRequest := m_utUpdateAe;
 						var universal charstring v_action :=  __SCOPE__ & ": Please, send a valid UPDATE Request for AE updating attribute contentSerialization to ";
-						v_utRequest.requestPrimitive.primitiveContent.aE.contentSerialization := {applicationxml};
+						v_utRequest.requestPrimitive.primitiveContent.aE.contentSerialization := {xml};
 						v_utRequest.forcedFields := {{name := "contentSerialization", value_ := "UNINITIALIZED"}};
 						
 						v_expectedUpdateRequestAe.primitiveContent.aE := mw_contentUpdateAe;