diff --git a/prometheuspvesd/discovery.py b/prometheuspvesd/discovery.py
index dbb073f..f3c8555 100644
--- a/prometheuspvesd/discovery.py
+++ b/prometheuspvesd/discovery.py
@@ -10,9 +10,9 @@ import requests
 
 from prometheuspvesd.config import SingleConfig
 from prometheuspvesd.exception import APIError
+from prometheuspvesd.logger import SingleLog
 from prometheuspvesd.model import Host
 from prometheuspvesd.model import HostList
-from prometheuspvesd.logger import SingleLog
 from prometheuspvesd.utils import to_bool
 
 try: