diff --git a/gestion/trigger/services/event.py b/gestion/trigger/services/event.py
index eda18ea3..7e8fd5a0 100644
--- a/gestion/trigger/services/event.py
+++ b/gestion/trigger/services/event.py
@@ -26,7 +26,7 @@ class Event(cmb.BasicProducer):
 
         """
         logger.info("Starting trigger Event program…")
-        super(Event, self).__init__(trigger_config.master, 'trigger.event', app_id)
+        super(Event, self).__init__(trigger_config.master, 'trigger', app_id)
         self._connection = self.connect()
         self.get_chan()
 
@@ -49,7 +49,7 @@ class Event(cmb.BasicProducer):
             raise
 
     def announce(self, body):
-        self.send_message("trigger.announce", body)
+        self.send_message("trigger.event", body)
 
 def diff_o_matic(body=()):
     """Fait un diff exhaustif des deux dicos"""
@@ -57,26 +57,26 @@ def diff_o_matic(body=()):
     if not body:
         raise("diff_o_matic received %r as an argument, which is unusable." % (body,))
 
-    before = body[1] or {}
-    after = body[2] or {}
+    before = dict(body[1]) or {}
+    after = dict(body[2]) or {}
 
     # set(dico) retourne un set de dico.keys()
     keys_pool = set(before).union(set(after))
     diff = {}
 
-    for key in key_pool:
+    for key in keys_pool:
         if before.has_key(key):
             if not isinstance(before[key], list):
                 blist = [before[key]]
             else:
-                blist = before[key]
+                blist = list(before[key])
         else:
             blist = []
         if after.has_key(key):
             if not isinstance(after[key], list):
                 alist = [after[key]]
             else:
-                alist = after[key]
+                alist = list(after[key])
         else:
             alist = []
         moins, plus = compare_lists(blist, alist)