diff --git a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.en.md b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.en.md
index 3e2bef447..46493b5fd 100644
--- a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.en.md
+++ b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.en.md
@@ -1,11 +1,9 @@
 ---
 title: Coordonnées sphériques
-published: true
+published: false
 routable: false
 visible: false
 lessons:
-    - slug:
-      order: 
     - slug: spherical-coordinates-linear
       order: 1 
 ---