diff --git a/pkg/proto/rtc/rtc.proto b/pkg/proto/rtc/rtc.proto
index 2c93c4963..5618b27e8 100644
--- a/pkg/proto/rtc/rtc.proto
+++ b/pkg/proto/rtc/rtc.proto
@@ -226,7 +226,7 @@ message SignalGetRoomByGroupIDReply {
 
 message SignalOnRoomChangeReq {
   InvitationInfo invitation = 1;
-  repeated ParticipantMetaData metaData = 2;
+  repeated ParticipantMetaData participant = 2;
   string groupID = 3;
 }
 
diff --git a/pkg/proto/sdk_ws/ws.proto b/pkg/proto/sdk_ws/ws.proto
index 0d51cb4e2..bdf5f10e9 100644
--- a/pkg/proto/sdk_ws/ws.proto
+++ b/pkg/proto/sdk_ws/ws.proto
@@ -657,7 +657,7 @@ message SignalGetRoomByGroupIDReply {
 
 message SignalOnRoomChangeReq {
   InvitationInfo invitation = 1;
-  repeated ParticipantMetaData metaData = 2;
+  repeated ParticipantMetaData participant = 2;
   string groupID = 3;
 }