diff --git a/district/blocks.py b/district/blocks.py
index 3e98158a20c86ab9348ba92e7c1625708b112a04..437d7c128604271c5eade926c025b7612afc7069 100644
--- a/district/blocks.py
+++ b/district/blocks.py
@@ -39,6 +39,7 @@ class FullscreenHeaderBlock(StructBlock):
     desktop_image = ImageChooserBlock(
         label="Obrázek na pozadí (desktop)",
         help_text="Pokud není vybráno video, ukáže se na desktopu.",
+        required=False,
     )
 
     mobile_image = ImageChooserBlock(
diff --git a/redmine_utils/management/commands/update_redmine_issues.py b/redmine_utils/management/commands/update_redmine_issues.py
index 1def7dc1f74a395aa16c46e661285257dcbb9372..6ac92775d32acc319077a91c9f6206764a019893 100644
--- a/redmine_utils/management/commands/update_redmine_issues.py
+++ b/redmine_utils/management/commands/update_redmine_issues.py
@@ -1,7 +1,6 @@
 from django.core.management.base import BaseCommand
 
 
-
 class Command(BaseCommand):
     def handle(self, *args, **options):
         """
diff --git a/shared_legacy/blocks/__init__.py b/shared_legacy/blocks/__init__.py
index 2e107faed32d10feeb9cc468282e7ffc2c362503..f4c0ba1a36a73602ab0328b40a32766caeee4544 100644
--- a/shared_legacy/blocks/__init__.py
+++ b/shared_legacy/blocks/__init__.py
@@ -1,2 +1,2 @@
 from .base import *  # noqa
-from .main import *  # noqa
\ No newline at end of file
+from .main import *  # noqa