diff --git a/Terminal.Gui/Application/Application.Initialization.cs b/Terminal.Gui/Application/Application.Initialization.cs
index f3901b8c9..d7ce7874b 100644
--- a/Terminal.Gui/Application/Application.Initialization.cs
+++ b/Terminal.Gui/Application/Application.Initialization.cs
@@ -184,6 +184,8 @@ public static partial class Application // Initialization (Init/Shutdown)
 
     internal static void UnsubscribeDriverEvents ()
     {
+        ArgumentNullException.ThrowIfNull (Driver);
+
         Driver.SizeChanged -= Driver_SizeChanged;
         Driver.KeyDown -= Driver_KeyDown;
         Driver.KeyUp -= Driver_KeyUp;