diff --git a/representation_construits/chapitre_2/exercices/CORRECTION_POKEDEX.md b/representation_construits/chapitre_2/exercices/CORRECTION_POKEDEX.md
index 7e3f236..8113e83 100644
--- a/representation_construits/chapitre_2/exercices/CORRECTION_POKEDEX.md
+++ b/representation_construits/chapitre_2/exercices/CORRECTION_POKEDEX.md
@@ -46,8 +46,8 @@ def le_plus_grand(pokemons):
 
 ```python
 def le_plus_leger(liste_pokemons):
-  leger = None
-  poids_min = None
+  leger = 0
+  poids_min = 0
   for (nom, (taille, poids)) in liste_pokemons.items():
     if poids_min > poids
     poids_min = poids