diff --git a/audiohandler/src/daudio_handler.cpp b/audiohandler/src/daudio_handler.cpp
index a8b1f22b63ae10defa07b9ba51d4f5ac35b66942..d1d12b04a7524c3b045d9fd86d4354be1e8220fe 100644
--- a/audiohandler/src/daudio_handler.cpp
+++ b/audiohandler/src/daudio_handler.cpp
@@ -138,7 +138,6 @@ 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 cfc263d3436ea1db18e215ee3d5d8c4fbcfb58f8..7ff4e92f2738f026b056dd32bc9dc43f6c7ecff4 100644
--- a/common/include/daudio_constants.h
+++ b/common/include/daudio_constants.h
@@ -160,7 +160,6 @@ 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";