diff --git a/gestion/gen_confs/populate_sshFingerprint.py b/gestion/gen_confs/populate_sshFingerprint.py
index ac146504..3b32d4b4 100755
--- a/gestion/gen_confs/populate_sshFingerprint.py
+++ b/gestion/gen_confs/populate_sshFingerprint.py
@@ -85,7 +85,7 @@ def publish_keys():
     validation=check_keys(keys)
     machines=get_machines()
     for machine in machines:
-        sshkeys_old=[key.value for key in machine.get('sshFingerprint',[])]
+        sshkeys_old=[str(key) for key in machine.get('sshFingerprint',[])]
         sshkeys_new=[key.decode('UTF-8') for algo,key in keys.items() if validation[algo]]
         if not set(sshkeys_old)==set(sshkeys_new):
             machine['sshFingerprint']=sshkeys_new