diff --git a/shared/protos/tunnelbroker.proto b/shared/protos/tunnelbroker.proto
--- a/shared/protos/tunnelbroker.proto
+++ b/shared/protos/tunnelbroker.proto
@@ -68,6 +68,7 @@
 
 message GetRequest {
   string sessionID = 1;
+  optional string newNotifyToken = 2;
 }
 
 message GetResponse {