diff --git a/doc/source/python/python_server.md b/doc/source/python/python_server.md
index bd40a397a9..0b871efd1a 100644
--- a/doc/source/python/python_server.md
+++ b/doc/source/python/python_server.md
@@ -193,6 +193,7 @@ Python Server can be configured using environmental variables or command line fl
 | `--threads`             | `GUNICORN_THREADS`                     | `10`          | Number of threads to run per Gunicorn worker.                                                                                                                      |
 | `--max-requests`        | `GUNICORN_MAX_REQUESTS`                | `0`           | Maximum number of requests gunicorn worker will process before restarting.                                                                                         |
 | `--max-requests-jitter` | `GUNICORN_MAX_REQUESTS_JITTER`         | `0`           | Maximum random jitter to add to max-requests.                                                                                                                      |
+| `--keepalive`           | `GUNICORN_KEEPALIVE          `         | `2`           | The number of seconds to wait for requests on a Keep-Alive connection.                                                                                         |
 | `--access-log`          | `GUNICORN_ACCESS_LOG`                  | `false`       | Enable gunicorn access log.                                                                                                                                        |
 | `--pidfile`             | N/A                                    | None          | A file path to use for the Gunicorn PID file.                                                                                                                      |
 | `--single-threaded`     | `FLASK_SINGLE_THREADED`                | `0`           | Force the Flask app to run single-threaded. Also applies to Gunicorn. Can be `0` or `1`.                                                                           |