diff --git a/slides/cours_24.md b/slides/cours_24.md
index 7e30b5f506754ad63655f415b306422897033390..6076abf07dc6b4d70ecd99393ca773d0a36ff5b9 100644
--- a/slides/cours_24.md
+++ b/slides/cours_24.md
@@ -59,7 +59,7 @@ file visiter(sommet, file)
 
 * Étape 1: $\mathcal{O}(|V|)$,
 * Étape 2: $\mathcal{O}(2|E|)$,
-* Total: $\mathcal{O}(|V| + |2|E|)$.
+* Total: $\mathcal{O}(|V| + 2|E|)$.
 
 # Exercice