diff --git a/audiohandler/src/daudio_handler.cpp b/audiohandler/src/daudio_handler.cpp
index d1d12b04a7524c3b045d9fd86d4354be1e8220fe..a8b1f22b63ae10defa07b9ba51d4f5ac35b66942 100644
--- a/audiohandler/src/daudio_handler.cpp
+++ b/audiohandler/src/daudio_handler.cpp
@@ -138,6 +138,7 @@ std::vector<DHItem> DAudioHandler::RealQuery(const std::string &dataType)
         cJSON_AddNumberToObject(infoJson, INTERRUPT_GROUP_ID, dev->interruptGroupId_);
         cJSON_AddNumberToObject(infoJson, VOLUME_GROUP_ID, dev->volumeGroupId_);
         cJSON_AddStringToObject(infoJson, KEY_DATATYPE, dataType.c_str());
+        cJSON_AddStringToObject(infoJson, DAUDIO, DAUDIO);
         dhItem.dhId = std::to_string(dhId);
         char *jsonInfo = cJSON_Print(infoJson);
         if (jsonInfo == NULL) {
diff --git a/common/include/daudio_constants.h b/common/include/daudio_constants.h
index b9b09e4d31d3f3479a8933b79f54ddde50ee4c77..8da669e3c9ee53ac64adb87715abf7f7daf5d68e 100644
--- a/common/include/daudio_constants.h
+++ b/common/include/daudio_constants.h
@@ -156,6 +156,7 @@ constexpr const char *SUPPORTEDSTREAM = "SupportedStream";
 constexpr const char *SAMPLERATES = "SampleRates";
 constexpr const char *CHANNELMASKS = "ChannelMasks";
 constexpr const char *FORMATS = "Formats";
+constexpr const char *DAUDIO = "Daudio";
 const std::string MUSIC = "Music";
 const std::string PCM = "PCM";
 const std::string OPUS = "OPUS";