diff --git a/v6d0auth/config.py b/v6d0auth/config.py
index c95e723..c396dbc 100644
--- a/v6d0auth/config.py
+++ b/v6d0auth/config.py
@@ -7,5 +7,5 @@ _root = Path(os.getenv('v6root', './data'))
 assert _root.exists()
 myroot = _root / 'v6d0auth'
 myroot.mkdir(exist_ok=True)
-port = int(os.getenv('v6root', '5003'))
+port = int(os.getenv('v6port', '5003'))
 cakey = bytes.fromhex(os.getenv('v6ca', ''))