diff --git a/aleksis/apps/untis/model_extensions.py b/aleksis/apps/untis/model_extensions.py
index b210f1983a6c4fafeaf6fd57148a1af3d6511190..2f33cda213c61bc8c43f56eeaa4310d6afc3a473 100644
--- a/aleksis/apps/untis/model_extensions.py
+++ b/aleksis/apps/untis/model_extensions.py
@@ -4,7 +4,6 @@ from jsonstore import CharField, IntegerField
 
 from aleksis.apps.chronos import models as chronos_models
 from aleksis.core import models as core_models
-
 from aleksis.core.util.core_helpers import get_site_preferences
 
 core_models.Person.field(