diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.fr.md
index cd5591021..19166f465 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.fr.md
@@ -7,8 +7,6 @@ lessons:
 lessons:
     - slug: brainstorming-123-electromagnetism
       order: 1
-    - slug: brainstorming-234-electromagnetism
-      order: 1
 ---
 
 #### Brainstorming pour structurer un thème "Electromagnétisme" : niveau 1