diff --git a/attributs.py b/attributs.py
index 36a7665..4432d82 100644
--- a/attributs.py
+++ b/attributs.py
@@ -172,7 +172,10 @@ class nom(Attr):
     legend = "Nom"
 
     def parse_value(self, val, ldif):
-        self.value = validate_name(val)
+        if u'club' in ldif['objectClass']:
+            self.value = validate_name(val,"0123456789\[\]")
+        else:
+            self.value = validate_name(val)
 
 
 class prenom(Attr):