diff --git a/src/agenda_culturel/celery.py b/src/agenda_culturel/celery.py
index bd76442..2ede094 100644
--- a/src/agenda_culturel/celery.py
+++ b/src/agenda_culturel/celery.py
@@ -66,10 +66,10 @@ def close_import_task(taskid, success, error_message, importer):
     task.status = (
         BatchImportation.STATUS.SUCCESS if success else BatchImportation.STATUS.FAILED
     )
-    task.nb_initial = importer.get_nb_events()
-    task.nb_imported = importer.get_nb_imported_events()
-    task.nb_updated = importer.get_nb_updated_events()
-    task.nb_removed = importer.get_nb_removed_events()
+    task.nb_initial = 0 if importer is None else importer.get_nb_events()
+    task.nb_imported = 0 if importer is None else importer.get_nb_imported_events()
+    task.nb_updated = 0 if importer is None else importer.get_nb_updated_events()
+    task.nb_removed = 0 if importer is None else importer.get_nb_removed_events()
 
     fields = ["status", "nb_initial", "nb_updated", "nb_imported", "nb_removed"]
     if not success:
@@ -260,7 +260,7 @@ def run_recurrent_import(self, pklist):
         raise self.retry(countdown=120)
     except MaxRetriesExceededError as e:
         logger.error(e)
-        close_import_task(self.request.id, False, e, importer)
+        close_import_task(self.request.id, False, e, None)
         return pklist[1:] if is_list else False