diff --git a/gestion/hptools.py b/gestion/hptools.py
index 316276ac..c664eeb2 100755
--- a/gestion/hptools.py
+++ b/gestion/hptools.py
@@ -20,7 +20,7 @@ from sre import findall
 
 try:
     path.append('/usr/scripts/gestion/secrets')
-    from secrets import config_snmp_secrete, reconf_snmp
+    from secrets import config_snmp_secrete, reconf_snmp, engineid
 except:
     # Si a  pas le droit de lire config_snmp_secrete
     # on va tenter de tout faire en snmpv1 et communauté public
@@ -120,7 +120,7 @@ class snmp :
         if version == '1' or version == '2c' :
             self.options = "-v %s -c '%s' %s " % ( version, community, host )
         elif version =='3' :
-            self.options = "-v 3 -u %s -a %s -A '%s' -l authNoPriv" % ( username, authentication_protocol, authentication_pass )
+            self.options = "-v 3 -e %s -u %s -a %s -A '%s' -l authNoPriv" % ( engineid[host.split('.',1)[0]], username, authentication_protocol, authentication_pass )
             if privacy_pass : 
                 self.options += " -x DES -X '%s' -l authPriv" % privacy_pass
             self.options += " %s " % host