diff --git a/protob/messages-monero.proto b/protob/messages-monero.proto
index 067c48ffd..4477082e8 100644
--- a/protob/messages-monero.proto
+++ b/protob/messages-monero.proto
@@ -140,6 +140,7 @@ message MoneroTransactionInitRequest {
         optional bytes exp_tx_prefix_hash = 12;
         repeated bytes use_tx_keys = 13;
         optional MoneroTransactionRsigData rsig_data = 14;
+        repeated uint32 integrated_indices = 15;
     }
 }