diff --git a/Python/etc/ssh/ssh_known_hosts b/Python/etc/ssh/ssh_known_hosts
index 47ce0aa..5d132f0 100644
--- a/Python/etc/ssh/ssh_known_hosts
+++ b/Python/etc/ssh/ssh_known_hosts
@@ -12,23 +12,23 @@ machines=ldap_conn.search("objectClass=machineCrans")
 key_machines={}
 for machine in machines:
 	for key in machine['sshFingerprint']:
-		if not key.value in key_machines.keys():
-			key_machines[key.value]=set()
+		if not key in key_machines:
+			key_machines[key]=set()
 		for host in machine['host']:
-			key_machines[key.value].add(host.value)
+			key_machines[key].add(host.value)
 			domains=host.value.split('.')
-			key_machines[key.value].add(domains[0])
-			key_machines[key.value].add('.'.join(domains[0:2]))
+			key_machines[key].add(domains[0])
+			key_machines[key].add('.'.join(domains[0:2]))
 		for alias in machine['hostAlias']:
-			key_machines[key.value].add(alias.value)
+			key_machines[key].add(alias.value)
 			domains=alias.value.split('.')
-			key_machines[key.value].add(domains[0])
-			key_machines[key.value].add('.'.join(domains[0:2]))
+			key_machines[key].add(domains[0])
+			key_machines[key].add('.'.join(domains[0:2]))
 		for ip in machine['ipHostNumber']:
-			key_machines[key.value].add("%s" % ip)
+			key_machines[key].add("%s" % ip)
 		if len(machine.get('dnsIpv6', []))<1 or machine['dnsIpv6'][0].value:
 			for ip in machine['ip6HostNumber']:
-				key_machines[key.value].add("%s" % ip)
+				key_machines[key].add("%s" % ip)
 
 # On trie pour avoir des diff valident en appliquant bcfg2 sur les machines 
 output=[]