diff --git a/00.brainstorming-pedagogical-teams/99.new-propositions/20.sets-systems/10.n1/20.overview/cheatsheet.fr.md b/00.brainstorming-pedagogical-teams/99.new-propositions/20.sets-systems/10.n1/20.overview/cheatsheet.fr.md
index 1b9c9c341..7c428fef3 100644
--- a/00.brainstorming-pedagogical-teams/99.new-propositions/20.sets-systems/10.n1/20.overview/cheatsheet.fr.md
+++ b/00.brainstorming-pedagogical-teams/99.new-propositions/20.sets-systems/10.n1/20.overview/cheatsheet.fr.md
@@ -8,5 +8,7 @@ lessons:
      order: 2
 ---
 
+### Des ensembles aux systèmes : niveau 1
+
 #### Tests écran smartphone de lisibilité figures