diff --git a/data/templates/nginx/plain/yunohost_panel.conf.inc b/data/templates/nginx/plain/yunohost_panel.conf.inc
index 1c5a2d656..53a69d705 100644
--- a/data/templates/nginx/plain/yunohost_panel.conf.inc
+++ b/data/templates/nginx/plain/yunohost_panel.conf.inc
@@ -4,5 +4,5 @@ sub_filter_once on;
 # Apply to other mime types than text/html
 sub_filter_types application/xhtml+xml;
 # Prevent YunoHost panel files from being blocked by specific app rules
-location ~ (ynh_portal.js|ynh_overlay.css|ynh_userinfo.json) {
+location ~ (ynh_portal.js|ynh_overlay.css|ynh_userinfo.json|ynhtheme/custom_portal.js|ynhtheme/custom_overlay.css) {
 }