diff --git a/en/application-dev/IDL/idl-guidelines.md b/en/application-dev/IDL/idl-guidelines.md
index cb075f42cf7ef08d02f78ec1d0377c84d5a0bbf6..661b2532c49d36c79855c3e0530326ef590c7cd2 100644
--- a/en/application-dev/IDL/idl-guidelines.md
+++ b/en/application-dev/IDL/idl-guidelines.md
@@ -590,7 +590,7 @@ export default class IdlTestServiceProxy implements IIdlTestService {
 
     testIntTransaction(data: number, callback: testIntTransactionCallback): void
     {
-        let _option = new rpc.MessageOption(rpc.MessageOption.TF_SYNC);
+        let _option = new rpc.MessageOption();
         let _data = new rpc.MessageParcel();
         let _reply = new rpc.MessageParcel();
         _data.writeInt(data);
@@ -612,7 +612,7 @@ export default class IdlTestServiceProxy implements IIdlTestService {
 
     testStringTransaction(data: string, callback: testStringTransactionCallback): void
     {
-        let _option = new rpc.MessageOption(rpc.MessageOption.TF_SYNC);
+        let _option = new rpc.MessageOption();
         let _data = new rpc.MessageParcel();
         let _reply = new rpc.MessageParcel();
         _data.writeString(data);
diff --git a/zh-cn/application-dev/IDL/idl-guidelines.md b/zh-cn/application-dev/IDL/idl-guidelines.md
index bcfde1302f38de916e7c3ebc45e3f0cb78d71241..5c2cadf08ea84b332bbe9c375b27bbbd2e83a699 100644
--- a/zh-cn/application-dev/IDL/idl-guidelines.md
+++ b/zh-cn/application-dev/IDL/idl-guidelines.md
@@ -590,7 +590,7 @@ export default class IdlTestServiceProxy implements IIdlTestService {
 
     testIntTransaction(data: number, callback: testIntTransactionCallback): void
     {
-        let _option = new rpc.MessageOption(rpc.MessageOption.TF_SYNC);
+        let _option = new rpc.MessageOption();
         let _data = new rpc.MessageParcel();
         let _reply = new rpc.MessageParcel();
         _data.writeInt(data);
@@ -612,7 +612,7 @@ export default class IdlTestServiceProxy implements IIdlTestService {
 
     testStringTransaction(data: string, callback: testStringTransactionCallback): void
     {
-        let _option = new rpc.MessageOption(rpc.MessageOption.TF_SYNC);
+        let _option = new rpc.MessageOption();
         let _data = new rpc.MessageParcel();
         let _reply = new rpc.MessageParcel();
         _data.writeString(data);