diff --git a/python/server.py b/python/server.py
index dc984f9..034c673 100644
--- a/python/server.py
+++ b/python/server.py
@@ -477,7 +477,7 @@ def zabbix_login(url, username, password):
         "jsonrpc": "2.0",
         "method": "user.login",
         "params": {
-            "user": username,
+            "username": username,  # Certifique-se de que é 'username' e não 'user'
             "password": password
         },
         "id": 1,