diff --git a/wgamesolv.py b/wgamesolv.py
index 5cac275..6b68600 100755
--- a/wgamesolv.py
+++ b/wgamesolv.py
@@ -25,6 +25,7 @@ parser.add_argument(
     '--nbLetters',
     type=int,
     help='Nombre de lettres, un entier',
+    default=False,
     required=True
 )
 parser.add_argument(
@@ -73,10 +74,7 @@ def load_dict(dict_file):
 fl = args.firstLetter
 
 # Nbr Letters
-if args.firstLetter:
-    nb = args.nbLetters
-else:
-    nbLetters = False
+nb = args.nbLetters
 
 # Pattern
 pattern = args.pattern