diff --git a/gestion/ldap_crans.py b/gestion/ldap_crans.py
index a2b78759..3106ff41 100755
--- a/gestion/ldap_crans.py
+++ b/gestion/ldap_crans.py
@@ -2723,7 +2723,6 @@ class Machine(BaseClasseCrans):
         if new == 'N/A':
             if self._data.has_key('prise'):
                 self._set('prise', [])
-                self._data.pop('prise')
             return
 
         if not re.match('^[a-cg-jmp][0-6][0-5][0-9]$', new.lower()):