diff --git a/conf/nginx/security.conf.inc b/conf/nginx/security.conf.inc
index a35bb566e..fe853155b 100644
--- a/conf/nginx/security.conf.inc
+++ b/conf/nginx/security.conf.inc
@@ -29,7 +29,6 @@ ssl_dhparam /usr/share/yunohost/ffdhe2048.pem;
 more_set_headers "Content-Security-Policy : upgrade-insecure-requests; default-src https: data: blob: ; object-src https: data: 'unsafe-inline'; style-src https: data: 'unsafe-inline' ; script-src https: data: 'unsafe-inline' 'unsafe-eval'";
 {% else %}
 more_set_headers "Content-Security-Policy : upgrade-insecure-requests";
-more_set_headers "Content-Security-Policy-Report-Only : default-src https: wss: data: blob: ; object-src https: data: 'unsafe-inline'; style-src https: data: 'unsafe-inline' ; script-src https: data: 'unsafe-inline' 'unsafe-eval'";
 {% endif %}
 more_set_headers "X-Content-Type-Options : nosniff";
 more_set_headers "X-XSS-Protection : 1; mode=block";