diff --git a/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/04.electromagnetism-in-media/03.reflexion-refraction/textbook.fr.md b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/04.electromagnetism-in-media/03.reflexion-refraction/textbook.fr.md
index 39c3fbbb9..c2d8d26ae 100644
--- a/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/04.electromagnetism-in-media/03.reflexion-refraction/textbook.fr.md
+++ b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/04.electromagnetism-in-media/03.reflexion-refraction/textbook.fr.md
@@ -1,7 +1,7 @@
 ---
 title : Reflexion, refraction at an interface between two meida linear, homogeneous and isotrope.
-published : false
-visible : false
+published : true
+visible : true
 ---
 
 ## Réflexion, réfraction et transmission à l'interface entre deux milieux LHI