diff --git a/pkg/proto/rtc/rtc.proto b/pkg/proto/rtc/rtc.proto
index 68d5733b4..e70739574 100644
--- a/pkg/proto/rtc/rtc.proto
+++ b/pkg/proto/rtc/rtc.proto
@@ -221,7 +221,7 @@ message SignalGetRoomByGroupIDReq {
 
 message SignalGetRoomByGroupIDReply {
   InvitationInfo invitation = 1;
-  repeated ParticipantMetaData metaData = 2;
+  repeated ParticipantMetaData participant = 2;
   string roomID = 3;
 }
 
diff --git a/pkg/proto/sdk_ws/ws.proto b/pkg/proto/sdk_ws/ws.proto
index a1678cbb2..76f133356 100644
--- a/pkg/proto/sdk_ws/ws.proto
+++ b/pkg/proto/sdk_ws/ws.proto
@@ -653,7 +653,7 @@ message SignalGetRoomByGroupIDReq {
 
 message SignalGetRoomByGroupIDReply {
   InvitationInfo invitation = 1;
-  repeated ParticipantMetaData metaData = 2;
+  repeated ParticipantMetaData participant = 2;
   string roomID = 3;
 }