diff --git a/grpc/pb/bdware/bdledger/api/ledger.proto b/grpc/pb/bdware/bdledger/api/ledger.proto
index 83ba2b4..764dcc3 100644
--- a/grpc/pb/bdware/bdledger/api/ledger.proto
+++ b/grpc/pb/bdware/bdledger/api/ledger.proto
@@ -42,8 +42,9 @@ message SendTransactionRequest {
   message Transaction {
     TransactionType type = 1;
     bytes from = 2;
-    bytes to = 3;
-    bytes data = 4;
+    uint64 nonce = 3;
+    bytes to = 4;
+    bytes data = 5;
   }
   Transaction transaction = 2;
 }