1 files changed, 2 insertions, 1 deletions
diff --git a/models.py b/models.py
index db81d5b..6d06793 100644
--- a/models.py
+++ b/models.py
@@ -57,7 +57,8 @@ class Timetable(SlugModel):
     url = models.URLField(max_length=255, verbose_name="URL")
     slug = models.SlugField(max_length=64, default="")
 
-    last_update_date = models.DateTimeField(verbose_name="dernière mise à jour Celcat", null=True)
+    last_update_date = models.DateTimeField(verbose_name="dernière mise à jour Celcat",
+                                            null=True, blank=True)
 
     def __str__(self):
         return self.year.name + " " + self.name