diff --git a/src/qt_gui/main_window.cpp b/src/qt_gui/main_window.cpp
index bd2f097ea..e5b502c58 100644
--- a/src/qt_gui/main_window.cpp
+++ b/src/qt_gui/main_window.cpp
@@ -577,7 +577,7 @@ void MainWindow::SaveWindowState() const {
 void MainWindow::InstallPkg() {
     QFileDialog dialog;
     dialog.setFileMode(QFileDialog::ExistingFiles);
-    dialog.setNameFilter(tr("PKG File (*.PKG)"));
+    dialog.setNameFilter(tr("PKG File (*.PKG *.pkg)"));
     if (dialog.exec()) {
         QStringList fileNames = dialog.selectedFiles();
         int nPkg = fileNames.size();
@@ -949,4 +949,4 @@ void MainWindow::OnLanguageChanged(const std::string& locale) {
     Config::setEmulatorLanguage(locale);
 
     LoadTranslation();
-}
\ No newline at end of file
+}