diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/10.n1/10.main/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/10.n1/10.main/textbook.fr.md
index cc21a35b8..b1145cf0c 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/10.n1/10.main/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/10.n1/10.main/textbook.fr.md
@@ -6,6 +6,8 @@ visible: false
 lessons:
     - slug: relativity-linear-1
       order: 1
+    - slug: relativity-123-main-panorama
+      order: 1
 ---
 
 Les relativités niveau 1 : main
\ No newline at end of file