diff --git a/S2/TP4/analyse_tris.py b/S2/TP4/analyse_tris.py
index b7f1348..d1b32a0 100644
--- a/S2/TP4/analyse_tris.py
+++ b/S2/TP4/analyse_tris.py
@@ -57,7 +57,7 @@ def liste_decroissante(n):
 	"""
 	assert(type(n)==int and n>=0)
 
-	return [i for i in range(n-1, 0, -1)]
+	return [i for i in range(n-1, -1, -1)]
    
 question(3)