diff --git a/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix b/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix
index d506939..5af4ab9 100644
--- a/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix
+++ b/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix
@@ -11,7 +11,7 @@ let
     add_header X-Frame-Options SAMEORIGIN;
     add_header X-Content-Type-Options nosniff;
     add_header X-XSS-Protection "1; mode=block";
-    add_header Content-Security-Policy "frame-ancestors 'none'";
+    add_header Content-Security-Policy "frame-ancestors 'self'";
 
     add_header Strict-Transport-Security "max-age=63072000" always;
   '';