diff --git a/html.ts b/html.ts
index cb08deb..fdbd204 100644
--- a/html.ts
+++ b/html.ts
@@ -44,6 +44,7 @@ export const figure = basicElement("figure");
 export const figcaption = basicElement("figcaption");
 export const article = basicElement("article");
 export const nav = basicElement("nav");
+export const header = basicElement("header");
 export const main = basicElement("main");
 
 // TODO: actually escape