diff --git a/nginx.tmpl b/nginx.tmpl
index 726c74b..bbb9b37 100644
--- a/nginx.tmpl
+++ b/nginx.tmpl
@@ -260,7 +260,7 @@ server {
 	{{ end }}
 
 	{{ if (and (ne $https_method "noredirect") (ne $hsts "off")) }}
-	add_header Strict-Transport-Security "{{ trim $hsts }}";
+	add_header Strict-Transport-Security "{{ trim $hsts }}" always;
 	{{ end }}
 
 	{{ if (exists (printf "/etc/nginx/vhost.d/%s" $host)) }}