diff --git a/aleksis/apps/chronos/models.py b/aleksis/apps/chronos/models.py
index 052067f5465e127133888104e169cabff5b7148b..5f8ccf41bb4246ecf5cb04a4c6c50c6db1152f09 100644
--- a/aleksis/apps/chronos/models.py
+++ b/aleksis/apps/chronos/models.py
@@ -64,10 +64,7 @@ from aleksis.apps.chronos.util.format import format_m2m
 from aleksis.apps.cursus import models as cursus_models
 from aleksis.apps.cursus.models import Course
 from aleksis.apps.resint.models import LiveDocument
-from aleksis.core.managers import (
-    CurrentSiteManagerWithoutMigrations,
-    PolymorphicCurrentSiteManager,
-)
+from aleksis.core.managers import CurrentSiteManagerWithoutMigrations, PolymorphicCurrentSiteManager
 from aleksis.core.mixins import (
     ExtensibleModel,
     GlobalPermissionModel,