diff --git a/wifi/lease.py b/wifi/lease.py
index 62c3c63d..2dbff4c4 100755
--- a/wifi/lease.py
+++ b/wifi/lease.py
@@ -54,6 +54,8 @@ class Leases:
         self.leases = []
         # Méthode rapide :
         for lease in " ".join(file(fichier).readlines()).split("}")[:-1]:
-            self.leases.append(Lease(lease))
-
-        
+            nouveau = Lease(lease)
+            # On enleve les anciens
+            self.leases = filter(lambda x: x.ip != nouveau.ip, self.leases)
+            # On rajoute le nouveau
+            self.leases.append(nouveau)