diff --git a/examples/tutorial/config/cluster_perflogs_httpjson.py b/examples/tutorial/config/cluster_perflogs_httpjson.py
index 179335675..d19b602b1 100644
--- a/examples/tutorial/config/cluster_perflogs_httpjson.py
+++ b/examples/tutorial/config/cluster_perflogs_httpjson.py
@@ -120,7 +120,7 @@ def _format_record(record, extras, ignore_keys):
                     'ignore_keys': ['check_perfvalues'],
                     'json_formatter': (_format_record
                                        if os.getenv('CUSTOM_JSON') else None),
-                    'authorization_header': _get_authorization_header()
+                    'authorization_header': _get_authorization_header
                 }
             ]
         }