diff --git a/gestion/trigger/services/event.py b/gestion/trigger/services/event.py
index 4cbc3add..8e862af4 100644
--- a/gestion/trigger/services/event.py
+++ b/gestion/trigger/services/event.py
@@ -33,6 +33,7 @@ import lc_ldap.attributs
 
 logger = clogger.CLogger("trigger", "event", "debug", trigger_config.debug)
 
+service = []
 for config_service in trigger_config.all_services:
     try:
         services.append(importlib.import_module("gestion.trigger.services.%s" % (config_service,)))