diff --git a/gestion/ldap_crans.py b/gestion/ldap_crans.py
index ddaab9ff..16de5226 100755
--- a/gestion/ldap_crans.py
+++ b/gestion/ldap_crans.py
@@ -2879,7 +2879,7 @@ class BorneWifi(Machine):
                 return None
 
         elif new == None:
-            self._set('positionBorne', [])
+            self._data.pop('positionBorne')
             return None
 
         else: