diff --git a/include/transport/protocol.proto b/include/transport/protocol.proto
index 703738f63c3ba7673e5ddb4dafb59758a2f7c89d..8f8a790b99ff69b6a9651b9d9c7e5ca52968b3ae 100644
--- a/include/transport/protocol.proto
+++ b/include/transport/protocol.proto
@@ -112,6 +112,7 @@ message Participant {
 	optional string statusMessage = 6;
 	optional string newname = 7;
 	optional string iconHash = 8;
+	optional string alias = 9;
 }
 
 message VCard {