diff --git a/biscuit/apps/chronos/models.py b/biscuit/apps/chronos/models.py
index fedde9f27ce63e69e72806d19d2361eb41585f1a..559343e9952c53848564d268529b4fca8c9c37e7 100644
--- a/biscuit/apps/chronos/models.py
+++ b/biscuit/apps/chronos/models.py
@@ -119,7 +119,7 @@ class LessonSubstitution(SchoolRelated):
                                       related_name='lesson_substitutions')
     room = models.ForeignKey('Room', models.CASCADE, null=True)
 
-    canceled = models.BooleanField(default=False)
+    cancelled = models.BooleanField(default=False)
 
     class Meta:
         unique_together = [['school', 'lesson_period', 'week']]