diff --git a/app/src/main/proto/google_auth.proto b/app/src/main/proto/google_auth.proto
index b214f554ec..371d49cf67 100644
--- a/app/src/main/proto/google_auth.proto
+++ b/app/src/main/proto/google_auth.proto
@@ -32,6 +32,7 @@ message MigrationPayload {
     DigitCount digits = 5;
     OtpType type = 6;
     int64 counter = 7;
+    string uniqueId = 8;
   }
 
   repeated OtpParameters otp_parameters = 1;