diff --git a/sksurgeryvtk/widgets/vtk_overlay_window.py b/sksurgeryvtk/widgets/vtk_overlay_window.py
index 26c853a..998d9ba 100644
--- a/sksurgeryvtk/widgets/vtk_overlay_window.py
+++ b/sksurgeryvtk/widgets/vtk_overlay_window.py
@@ -201,6 +201,7 @@ def __init__(
         self.layer_4_renderer = vtk.vtkRenderer()
         self.layer_4_renderer.SetLayer(4)
         self.layer_4_renderer.LightFollowCameraOn()
+        self.layer_4_renderer.InteractiveOff()
 
         # Enable VTK Depth peeling settings for render window, and renderers.
         if use_depth_peeling: