1 files changed, 4 insertions, 0 deletions
diff --git a/opentrack/main-window.hpp b/opentrack/main-window.hpp
index ddb6b725..1ccef358 100644
--- a/opentrack/main-window.hpp
+++ b/opentrack/main-window.hpp
@@ -34,6 +34,8 @@
 
 #include "ui_main-window.h"
 
+class update_query;
+
 class main_window final : public QMainWindow, private State
 {
     Q_DECLARE_TR_FUNCTIONS(main_window)
@@ -78,6 +80,8 @@ class main_window final : public QMainWindow, private State
     qt_signal<void> toggle_tracker { this, &main_window::toggle_tracker_, Qt::QueuedConnection };
     qt_signal<void> restart_tracker { this, &main_window::restart_tracker_, Qt::QueuedConnection };
 
+    std::unique_ptr<update_query> updater;
+
 public:
     void init_dylibs();
     void init_tray_menu();