diff --git a/netbox/netbox/settings.py b/netbox/netbox/settings.py
index 5941c3130..208123348 100644
--- a/netbox/netbox/settings.py
+++ b/netbox/netbox/settings.py
@@ -124,7 +124,7 @@ DATABASES = {
 #
 
 if MEDIA_STORAGE:
-    if not 'BACKEND' in MEDIA_STORAGE:
+    if 'BACKEND' not in MEDIA_STORAGE:
         raise ImproperlyConfigured(
             "Required parameter BACKEND is missing from MEDIA_STORAGE in configuration.py."
         )