diff --git a/cfgov/cfgov/settings/base.py b/cfgov/cfgov/settings/base.py
index 3ac5b888c85..19c9de32c43 100644
--- a/cfgov/cfgov/settings/base.py
+++ b/cfgov/cfgov/settings/base.py
@@ -374,6 +374,7 @@
     AWS_ACCESS_KEY_ID = os.environ["AWS_ACCESS_KEY_ID"]
     AWS_SECRET_ACCESS_KEY = os.environ["AWS_SECRET_ACCESS_KEY"]
     DEFAULT_FILE_STORAGE = "storages.backends.s3boto3.S3Boto3Storage"
+    AWS_S3_CUSTOM_DOMAIN = os.environ.get("AWS_S3_CUSTOM_DOMAIN")
     MEDIA_URL = os.path.join(
         AWS_STORAGE_BUCKET_NAME + ".s3.amazonaws.com", AWS_LOCATION, ""
     )