1 files changed, 3 insertions, 2 deletions
diff --git a/src/qt/psbtoperationsdialog.cpp b/src/qt/psbtoperationsdialog.cpp
index 55ab6046cf..99318c3bc0 100644
--- a/src/qt/psbtoperationsdialog.cpp
+++ b/src/qt/psbtoperationsdialog.cpp
@@ -141,11 +141,12 @@ void PSBTOperationsDialog::saveTransaction() {
     filename_suggestion.append(".psbt");
     QString filename = GUIUtil::getSaveFileName(this,
         tr("Save Transaction Data"), filename_suggestion,
-        tr("Partially Signed Transaction (Binary) (*.psbt)"), &selected_filter);
+        //: Expanded name of the binary PSBT file format. See: BIP 174.
+        tr("Partially Signed Transaction (Binary)") + QLatin1String(" (*.psbt)"), &selected_filter);
     if (filename.isEmpty()) {
         return;
     }
-    std::ofstream out(filename.toLocal8Bit().data());
+    std::ofstream out(filename.toLocal8Bit().data(), std::ofstream::out | std::ofstream::binary);
     out << ssTx.str();
     out.close();
     showStatus(tr("PSBT saved to disk."), StatusLevel::INFO);