diff --git a/ExternalToolProjects/FakeTemporalAA/FakeTemporalAAToolForm.cs b/ExternalToolProjects/FakeTemporalAA/FakeTemporalAAToolForm.cs
index d6720cc94f..df6aabb25a 100644
--- a/ExternalToolProjects/FakeTemporalAA/FakeTemporalAAToolForm.cs
+++ b/ExternalToolProjects/FakeTemporalAA/FakeTemporalAAToolForm.cs
@@ -29,7 +29,7 @@ public sealed class FakeTemporalAAToolForm: ToolFormBase, IExternalToolForm
 		=> _ = _maybeVideoProvider; // used via ToolFormBase.MainForm
 
 	private void ClearDrawingSurface()
-		=> APIs.Gui.WithSurface(DisplaySurfaceID.EmuCore, g => g.ClearGraphics(DisplaySurfaceID.EmuCore));
+		=> _maybeAPIContainer?.Gui?.WithSurface(DisplaySurfaceID.EmuCore, g => g.ClearGraphics(DisplaySurfaceID.EmuCore));
 
 	protected override void Dispose(bool disposing)
 	{