diff --git a/diagrams/onprem/logging.py b/diagrams/onprem/logging.py
index 9db586cc..f0cbd2ab 100644
--- a/diagrams/onprem/logging.py
+++ b/diagrams/onprem/logging.py
@@ -15,6 +15,7 @@ class Fluentd(_Logging):
 class Logstash(_Logging):
     _icon = "logstash.png"
 
+
 class Loki(_Logging):
     _icon = "loki.png"