diff --git a/deploy/Caddyfile.tmpl b/deploy/Caddyfile.tmpl
index abd7aba..7c2a7fc 100644
--- a/deploy/Caddyfile.tmpl
+++ b/deploy/Caddyfile.tmpl
@@ -43,6 +43,9 @@ __HOST__ {
 		header @immutable Cache-Control "public, max-age=31536000, immutable"
 		@mutable not path /_app/immutable/*
 		header @mutable Cache-Control "no-cache"
+		# try_files passes the root over as a directory and would fall to the shell; the hall's
+		# own page is index.html.
+		rewrite / /index.html
 		try_files {path} {path}.html /shell.html
 		file_server
 	}