diff --git a/src/pbnetwork.proto b/src/pbnetwork.proto
index e5c2970124aeec9fc6061bfd4613f357a1dd1c25..4fc7bf197d2c849f9d477629c3228418f783f537 100644
--- a/src/pbnetwork.proto
+++ b/src/pbnetwork.proto
@@ -52,6 +52,7 @@ message Participant {
 	required string room = 2;
 	required string nickname = 3;
 	required int32 flag = 4;
+	optional string newname = 5;
 }
 
 message WrapperMessage {