diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index ef545f26..54be20a3 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -4775,7 +4775,7 @@ void wallet2::transfer(const construct_tx_param& ctp,
 
   if (m_watch_only)
   {
-    bool r = store_unsigned_tx_to_file_and_reserve_transfers(ftp, "zano_tx_unsigned", p_signed_tx_blob_str);
+    bool r = store_unsigned_tx_to_file_and_reserve_transfers(ftp, (p_unsigned_filename_or_tx_blob_str != nullptr ? *p_unsigned_filename_or_tx_blob_str : "zano_tx_unsigned"), p_unsigned_filename_or_tx_blob_str);
     WLT_THROW_IF_FALSE_WALLET_CMN_ERR_EX(r, "failed to store unsigned tx");
     WLT_LOG_GREEN("[wallet::transfer]" << " prepare_transaction_time: " << print_fixed_decimal_point(prepare_transaction_time, 3), LOG_LEVEL_0);
     return;