diff --git a/conf/nginx.conf b/conf/nginx.conf
index 695b7a0..f9d087f 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,5 +1,8 @@
 root __FINALPATH__/jitsi-meet-web;
 
+# fix https://github.com/YunoHost-Apps/jitsi_ynh/issues/113
+more_set_headers "Content-Security-Policy: frame-ancestors 'self'";
+
 # ssi on with javascript for multidomain variables in config.js
 ssi on;
 ssi_types application/x-javascript application/javascript;