diff --git a/aleksis/apps/alsijil/models.py b/aleksis/apps/alsijil/models.py
index ed79ee912c0e581021be74c3505a7daed13cf2eb..2cd7b24c64ef7314a47557158e7c8af09d1abf6f 100644
--- a/aleksis/apps/alsijil/models.py
+++ b/aleksis/apps/alsijil/models.py
@@ -393,7 +393,7 @@ class LessonDocumentation(RegisterObjectRelatedMixin, ExtensibleModel):
                     lesson=self.lesson_period.lesson,
                     period__weekday=self.lesson_period.period.weekday,
                 ),
-                False
+                False,
             )
         super().save(*args, **kwargs)