diff --git a/src/gui/mainwindow.cpp b/src/gui/mainwindow.cpp
index c94ac19..d352cfe 100644
--- a/src/gui/mainwindow.cpp
+++ b/src/gui/mainwindow.cpp
@@ -2,5 +2,10 @@
 
 MainWindow::MainWindow()
 {
-    ui.setupUi(this);
-}
\ No newline at end of file
+    ui_.setupUi(this);
+
+    connect(ui_.actionQuit, &QAction::triggered, qApp, QApplication::quit);
+
+    marketplace_ = std::make_unique<Marketplace>();
+}
+
diff --git a/src/gui/mainwindow.h b/src/gui/mainwindow.h
index 2cc3dad..943382c 100644
--- a/src/gui/mainwindow.h
+++ b/src/gui/mainwindow.h
@@ -1,9 +1,13 @@
 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H
 
+#include <marketplace.h>
+
 #include "ui_mainwindow.h"
 #include <QMainWindow>
 
+#include <memory>
+
 class MainWindow : public QMainWindow
 {
     Q_OBJECT
@@ -12,7 +16,8 @@ class MainWindow : public QMainWindow
     MainWindow();
 
     private:
-        Ui::MainWindow ui;
+        Ui::MainWindow ui_;
+        std::unique_ptr<Marketplace> marketplace_;
 };
 
 #endif
\ No newline at end of file