diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index 0635520c6..052782ad5 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -195,7 +195,7 @@ namespace
   const char* USAGE_SWEEP_BELOW("sweep_below <amount_threshold> [index=<N1>[,<N2>,...]] [<priority>] [<ring_size>] <address> [<payment_id (obsolete)>]");
   const char* USAGE_SWEEP_SINGLE("sweep_single [<priority>] [<ring_size>] [outputs=<N>] <key_image> <address> [<payment_id (obsolete)>]");
   const char* USAGE_DONATE("donate [index=<N1>[,<N2>,...]] [<priority>] [<ring_size>] <amount> [<payment_id (obsolete)>]");
-  const char* USAGE_SIGN_TRANSFER("sign_transfer [export_raw]");
+  const char* USAGE_SIGN_TRANSFER("sign_transfer [export_raw] [<filename>]");
   const char* USAGE_SET_LOG("set_log <level>|{+,-,}<categories>");
   const char* USAGE_ACCOUNT("account\n"
                             "  account new <label text with white spaces allowed>\n"
@@ -3301,7 +3301,8 @@ simple_wallet::simple_wallet()
   m_cmd_binder.set_handler("sign_transfer",
                            boost::bind(&simple_wallet::on_command, this, &simple_wallet::sign_transfer, _1),
                            tr(USAGE_SIGN_TRANSFER),
-                           tr("Sign a transaction from a file. If the parameter \"export_raw\" is specified, transaction raw hex data suitable for the daemon RPC /sendrawtransaction is exported."));
+                           tr("Sign a transaction from a file. If the parameter \"export_raw\" is specified, transaction raw hex data suitable for the daemon RPC /sendrawtransaction is exported.\n"
+                              "Use the parameter <filename> to specify the file to read from. If not specified, the default \"unsigned_monero_tx\" will be used."));
   m_cmd_binder.set_handler("submit_transfer",
                            boost::bind(&simple_wallet::on_command, this, &simple_wallet::submit_transfer, _1),
                            tr("Submit a signed transaction from a file."));
@@ -7886,19 +7887,33 @@ bool simple_wallet::sign_transfer(const std::vector<std::string> &args_)
      fail_msg_writer() << tr("This is a watch only wallet");
      return true;
   }
-  if (args_.size() > 1 || (args_.size() == 1 && args_[0] != "export_raw"))
+
+  bool export_raw = false;
+  std::string unsigned_filename = "unsigned_monero_tx";
+  if (args_.size() > 2 || (args_.size() == 2 && args_[0] != "export_raw"))
   {
     PRINT_USAGE(USAGE_SIGN_TRANSFER);
     return true;
   }
+  else if (args_.size() == 2)
+  {
+    export_raw = true;
+    unsigned_filename = args_[1];
+  }
+  else if (args_.size() == 1)
+  {
+    if (args_[0] == "export_raw")
+      export_raw = true;
+    else
+      unsigned_filename = args_[0];
+  }
 
   SCOPED_WALLET_UNLOCK();
-  const bool export_raw = args_.size() == 1;
 
   std::vector<tools::wallet2::pending_tx> ptx;
   try
   {
-    bool r = m_wallet->sign_tx("unsigned_monero_tx", "signed_monero_tx", ptx, [&](const tools::wallet2::unsigned_tx_set &tx){ return accept_loaded_tx(tx); }, export_raw);
+    bool r = m_wallet->sign_tx(unsigned_filename, "signed_monero_tx", ptx, [&](const tools::wallet2::unsigned_tx_set &tx){ return accept_loaded_tx(tx); }, export_raw);
     if (!r)
     {
       fail_msg_writer() << tr("Failed to sign transaction");