diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/30.en/textbook.fr.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/30.en/textbook.fr.md
index f7a8a3820..32a439d15 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/30.en/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/05.first-steps/30.en/textbook.fr.md
@@ -1,4 +1,4 @@
---
+---
 title: Brainstorming sur les outils mathématiques requis à chaque niveau
 published: true
 routable: true