diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 1252678..9bdc162 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -1367,6 +1367,8 @@ class RecurrentImport(models.Model):
         verbose_name=_("Category"),
         help_text=_("Category of each imported event"),
         default=None,
+        null=True,
+        blanck=True,
         on_delete=models.SET_DEFAULT,
     )
     defaultTags = ArrayField(