diff --git a/messkit/appsettings.py b/messkit/appsettings.py
index 57d5d83..0a2c7a6 100644
--- a/messkit/appsettings.py
+++ b/messkit/appsettings.py
@@ -29,6 +29,7 @@ from rattail.settings import (
 
     # (General)
     rattail_app_title,
+    rattail_production,
 
     # Mail
     rattail_mail_record_attempts,