diff --git a/include/transport/protocol.proto b/include/transport/protocol.proto
index 796b656c3dbfb59ca17b977fd7be347d5051359b..4e47ea6a3ddcb384c4948312966aa6050330c308 100644
--- a/include/transport/protocol.proto
+++ b/include/transport/protocol.proto
@@ -95,6 +95,10 @@ enum ParticipantFlag {
 	PARTICIPANT_FLAG_NOT_AUTHORIZED = 8;
 	PARTICIPANT_FLAG_ME = 16;
 	PARTICIPANT_FLAG_KICKED = 32;
+	PARTICIPANT_FLAG_VISITOR = 64;
+	PARTICIPANT_FLAG_MEMBER = 128;
+	PARTICIPANT_FLAG_ADMIN = 256;
+	PARTICIPANT_FLAG_OWNER = 512;
 }
 
 message Participant {