diff --git a/services.py b/services.py
index efe0d85..3ff8fc7 100644
--- a/services.py
+++ b/services.py
@@ -6,6 +6,7 @@ import lc_ldap
 import attributs
 import objets
 import variables
+import config
 from gen_confs.dhcpd_new import dydhcp
 
 # liste des attributs dont dépend un service
@@ -210,16 +211,21 @@ def services_to_restart(conn, old_attrs={}, new_attrs={}):
 
                 # Cas du dhcp
                 if attr.__class__ in services_to_attrs['dhcp']:
-                    dhcp=dydhcp()
                     if old_attrs.get('ipHostNumber', []) and old_attrs.get('macAddress', []):
                         if new_attrs.get('ipHostNumber', []) and new_attrs.get('macAddress', []):
                             if str(old_attrs['ipHostNumber'][0]) != str(new_attrs['ipHostNumber'][0]) or str(old_attrs['macAddress'][0]) != str(new_attrs['macAddress'][0]):
-                                dhcp.del_host(str(old_attrs['ipHostNumber'][0]), str(old_attrs['macAddress'][0]))
-                                dhcp.add_host(str(new_attrs['ipHostNumber'][0]), str(new_attrs['macAddress'][0]), str(new_attrs['host'][0]))
+                                for server in config.dhcp_servers:
+                                    dhcp=dydhcp(server)
+                                    dhcp.del_host(str(old_attrs['ipHostNumber'][0]), str(old_attrs['macAddress'][0]))
+                                    dhcp.add_host(str(new_attrs['ipHostNumber'][0]), str(new_attrs['macAddress'][0]), str(new_attrs['host'][0]))
                         else:
-                            dhcp.del_host(str(old_attrs['ipHostNumber'][0]), str(old_attrs['macAddress'][0]))
+                            for server in config.dhcp_servers:
+                                dhcp=dydhcp(server)
+                                dhcp.del_host(str(old_attrs['ipHostNumber'][0]), str(old_attrs['macAddress'][0]))
                     elif new_attrs.get('ipHostNumber', []) and new_attrs.get('macAddress', []):
-                        dhcp.add_host(str(new_attrs['ipHostNumber'][0]), str(new_attrs['macAddress'][0]), str(new_attrs['host'][0]))
+                        for server in config.dhcp_servers:
+                            dhcp=dydhcp(server)
+                            dhcp.add_host(str(new_attrs['ipHostNumber'][0]), str(new_attrs['macAddress'][0]), str(new_attrs['host'][0]))
 
             if service in services_to_time.keys():
                 start = services_to_time[service](attr)