diff --git a/zx/_gui.py b/zx/_gui.py
index 17992af..8e1f00d 100644
--- a/zx/_gui.py
+++ b/zx/_gui.py
@@ -438,7 +438,7 @@ def _on_quantum_run(self, event, devices):
             Gtk.main_iteration()
 
         while self.__events:
-            devices.notify(self.__events.pop(0))
+            self.on_event(self.__events.pop(0), devices, None)
 
     def __toggle_pause(self, devices):
         devices.notify(ToggleEmulationPause())