diff --git a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.fr.md b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.fr.md
index 23c212547..f82afc0f0 100644
--- a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.fr.md
+++ b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.fr.md
@@ -1,11 +1,9 @@
 ---
 title: Coordonnées sphériques
 published: true
-routable: false
+routable: true
 visible: false
 lessons:
-    - slug:
-      order:
     - slug: spherical-coordinates-linear
       order: 3
 ---