diff --git a/data/templates/nginx/plain/yunohost_admin.conf b/data/templates/nginx/plain/yunohost_admin.conf
index 3de66e3e6..06d1ef09c 100644
--- a/data/templates/nginx/plain/yunohost_admin.conf
+++ b/data/templates/nginx/plain/yunohost_admin.conf
@@ -68,7 +68,7 @@ server {
         if ($http_user_agent ~ (crawl|Googlebot|Slurp|spider|bingbot|tracker|click|parser|spider|facebookexternalhit) ) {
             return 403;
         }
-
+        add_header  X-Robots-Tag "nofollow, noindex, noarchive, nosnippet";
         # Redirect most of 404 to maindomain.tld/yunohost/sso
         access_by_lua_file /usr/share/ssowat/access.lua;
     }