diff --git a/conf/nginx.conf b/conf/nginx.conf
index 6cd2808..9e0e94b 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -7,6 +7,8 @@ location __PATH__/ {
 
     more_set_headers "Content-Security-Policy: frame-ancestors 'self'";
     
+    more_set_headers "Content-Security-Policy: frame-ancestors 'self'";
+    
     # Include SSOWAT user panel.
     include conf.d/yunohost_panel.conf.inc;
 }