diff --git a/runbot/templates/nginx.xml b/runbot/templates/nginx.xml
index 1c843991..81afd8a2 100644
--- a/runbot/templates/nginx.xml
+++ b/runbot/templates/nginx.xml
@@ -42,7 +42,9 @@ server {
     location /runbot/static/ {
       alias <t t-esc="runbot_static"/>;
       autoindex off;
-      location ~ /runbot/static/build/[^/]+/(logs|tests)/ {
+      return 404;
+      location /runbot/static/src { }
+      location ~ /runbot/static/build/[^/]+/(logs|tests|coverage)/ {
           autoindex on;
           add_header 'Access-Control-Allow-Origin' '<t t-esc="base_url"/>';
       }