diff --git a/conf.d/code.shore.co.il.conf b/conf.d/code.shore.co.il.conf
index 8745c5b4421955ceeae1e5a00bb7e4cf371f0618..4f6087fb36ebfd4a9c52a7ba2cfbe99f85b52a5c 100644
--- a/conf.d/code.shore.co.il.conf
+++ b/conf.d/code.shore.co.il.conf
@@ -19,6 +19,7 @@ server {
     include     snippets/ads-txt.conf;
     include     snippets/security-txt.conf;
     include     snippets/ssl.conf;
+    add_header  Content-Security-Policy "frame-ancestors https://*.shore.co.il";
 
     # The following was copied (and modified) from
     # https://www.collaboraoffice.com/code/nginx-reverse-proxy/.