diff --git a/courses/models.py b/courses/models.py
index 6ad87b276b..fdf1f6c94b 100644
--- a/courses/models.py
+++ b/courses/models.py
@@ -25,7 +25,6 @@
 
 from courses.constants import (
     AVAILABILITY_ANYTIME,
-    AVAILABILITY_CHOICES,
     ENROLL_CHANGE_STATUS_CHOICES,
     ENROLLABLE_ITEM_ID_SEPARATOR,
     SYNCED_COURSE_RUN_FIELD_MSG,
@@ -159,7 +158,9 @@ class Meta:
     )
     departments = models.ManyToManyField(Department, blank=False)
     availability = models.CharField(
-        choices=[("anytime", "anytime"), ("dated", "dated")], default=AVAILABILITY_ANYTIME, max_length=255
+        choices=[("anytime", "anytime"), ("dated", "dated")],
+        default=AVAILABILITY_ANYTIME,
+        max_length=255,
     )
 
     @cached_property