diff --git a/selfdrive/ui/qt/window.hpp b/selfdrive/ui/qt/window.hpp
index fa68cec1d0..1f5a4c10ee 100644
--- a/selfdrive/ui/qt/window.hpp
+++ b/selfdrive/ui/qt/window.hpp
@@ -38,7 +38,7 @@ private:
   QTimer * timer;
   QTimer * backlight_timer;
 
-  UIState * ui_state;
+  UIState * ui_state = nullptr;
   QtSound sound;
 
   bool onroad = true;