diff --git a/cockatrice/src/client/ui/window_main.cpp b/cockatrice/src/client/ui/window_main.cpp
index a74bc712b..4e23b54e9 100644
--- a/cockatrice/src/client/ui/window_main.cpp
+++ b/cockatrice/src/client/ui/window_main.cpp
@@ -866,7 +866,7 @@ MainWindow::MainWindow(QWidget *parent)
     createActions();
     createMenus();
 
-    tabSupervisor = new TabSupervisor(client);
+    tabSupervisor = new TabSupervisor(client, this);
     connect(tabSupervisor, &TabSupervisor::setMenu, this, &MainWindow::updateTabMenu);
     connect(tabSupervisor, &TabSupervisor::localGameEnded, this, &MainWindow::localGameEnded);
     connect(tabSupervisor, &TabSupervisor::showWindowIfHidden, this, &MainWindow::showWindowIfHidden);