diff --git a/salt/elasticsearch/files/ingest/ossec b/salt/elasticsearch/files/ingest/ossec
index 51efc7e0b..20da23213 100644
--- a/salt/elasticsearch/files/ingest/ossec
+++ b/salt/elasticsearch/files/ingest/ossec
@@ -33,11 +33,6 @@
     { "rename":         { "field": "data.win.eventdata.user",                   "target_field": "user.name",            "ignore_missing": true  } },
     { "rename":         { "field": "data.win.system",                   "target_field": "winlog",           "ignore_missing": true  } },
     { "rename":         { "field": "data.win.eventdata",                   "target_field": "winlog.event_data",           "ignore_missing": true  } },     
-    { "script": { 
-        "lang": "painless", 
-        "source": "Map eventData = ctx['winlog']['event_data']; Map updatedEventData = new HashMap(); for (String key: eventData.keySet()) { updatedEventData[key.substring(0,1).toUpperCase() + key.substring(1)] = eventData[key] } ctx['winlog']['event_data'] = updatedEventData"
-            }
-          },
     { "rename":         { "field": "data",                   "target_field": "wazuh.data",           "ignore_missing": true  } },
     { "rename":         { "field": "winlog.eventID",                   "target_field": "winlog.event_id",           "ignore_missing": true  } },
     { "rename":         { "field": "predecoder.program_name",                   "target_field": "process.name",         "ignore_missing": true  } },