diff --git a/src/caosdb/connection/authentication/input.py b/src/caosdb/connection/authentication/input.py
index f8bcefb8cf5eaf5adab211c266055e601946b113..e0b4c7603145e2b7435a874bb04869c560710ec7 100644
--- a/src/caosdb/connection/authentication/input.py
+++ b/src/caosdb/connection/authentication/input.py
@@ -30,6 +30,7 @@ from .interface import CredentialsProvider, CredentialsAuthenticator
 
 import getpass
 
+
 def get_authentication_provider():
     """get_authentication_provider.