diff --git a/src/spaceone/monitoring/service/event_service.py b/src/spaceone/monitoring/service/event_service.py
index a345e1d..55c11cc 100644
--- a/src/spaceone/monitoring/service/event_service.py
+++ b/src/spaceone/monitoring/service/event_service.py
@@ -342,7 +342,7 @@ def _create_alert(self, event_data):
                         "name": resource,
                     }
                 )
-            alert_data["resource"] = alert_resources
+            alert_data["resources"] = alert_resources
 
         escalation_policy_id, escalation_ttl = self._get_escalation_policy_info(
             event_data["project_id"],