diff --git a/src/format.ts b/src/format.ts
index 4b3eeb66..9f0bfcf3 100644
--- a/src/format.ts
+++ b/src/format.ts
@@ -36,6 +36,7 @@ enum ArticleDesign {
 	Obituary,
 	Correction,
 	FullPageInteractive,
+	NewsletterSignup,
 }
 
 enum ArticleDisplay {