diff --git a/proto/nearby_client_enums.proto b/proto/nearby_client_enums.proto
index 42cef7f8..72a547f5 100644
--- a/proto/nearby_client_enums.proto
+++ b/proto/nearby_client_enums.proto
@@ -39,4 +39,5 @@ enum ClientType {
   MAGIC_PAIR = 2;
   SETUP = 3;
   SHARING = 4;
+  TRIANGLE = 5;
 }