diff --git a/wagtail/wagtailimages/apps.py b/wagtail/wagtailimages/apps.py
index 3b5a61900..6ef3ddb1e 100644
--- a/wagtail/wagtailimages/apps.py
+++ b/wagtail/wagtailimages/apps.py
@@ -1,6 +1,6 @@
 from django.apps import AppConfig
 
-from . import checks
+from . import checks  # NOQA
 
 
 class WagtailImagesAppConfig(AppConfig):