diff --git a/dita/RTC-NG/API/class_channelmediaoptions.dita b/dita/RTC-NG/API/class_channelmediaoptions.dita
index 3542e5816ce..0dbd0941081 100644
--- a/dita/RTC-NG/API/class_channelmediaoptions.dita
+++ b/dita/RTC-NG/API/class_channelmediaoptions.dita
@@ -84,6 +84,8 @@
   public audioDelayMs?:number;
 
   public mediaPlayerAudioDelayMs?:number;
+  
+  public token?:string;
 
   public enableBuiltInMediaEncryption?:boolean;
 
diff --git a/dita/RTC-NG/API/class_musiccontentcenterconfiguration.dita b/dita/RTC-NG/API/class_musiccontentcenterconfiguration.dita
index 66925b21623..3fbc4c0aeed 100644
--- a/dita/RTC-NG/API/class_musiccontentcenterconfiguration.dita
+++ b/dita/RTC-NG/API/class_musiccontentcenterconfiguration.dita
@@ -35,7 +35,7 @@
   
   public eventHandler?:IMusicContentCenterEventHandler
   
-  public mccDomain:string = ""
+  public mccDomain?:string
 }</codeblock>
             <codeblock props="ios mac" outputclass="language-objectivec">__attribute__((visibility("default"))) @interface AgoraMusicContentCenterConfig : NSObject
 @property(assign, nonatomic) AgoraRtcEngineKit* _Nullable rtcEngine;