diff --git a/api/@ohos.bluetooth.a2dp.d.ts b/api/@ohos.bluetooth.a2dp.d.ts
index 116176bdb..0baaa5cbe 100644
--- a/api/@ohos.bluetooth.a2dp.d.ts
+++ b/api/@ohos.bluetooth.a2dp.d.ts
@@ -303,7 +303,7 @@ declare namespace a2dp {
     setCurrentCodecInfo(deviceId: string, codecInfo: CodecInfo): void;
 
     /**
-     * Restriction devices to play music within (@code duration) milliseconds of connection.
+     * Restriction devices to play music within {@code duration} milliseconds of connection.
      *
      * @permission ohos.permission.ACCESS_BLUETOOTH and ohos.permission.MANAGE_BLUETOOTH
      * @param { string } deviceId - Indicates device ID. For example, "11:22:33:AA:BB:FF".