diff --git a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md
index 84e4e4cd6..e1072daad 100644
--- a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md
+++ b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md
@@ -1,5 +1,7 @@
 ---
 title: 'The optical path T'
+published: false
+visible: false
 ---
 
 ##### Le chemin optique