diff --git a/nginx/conf.d/default.conf b/nginx/conf.d/default.conf
index e1df794..9005f6c 100644
--- a/nginx/conf.d/default.conf
+++ b/nginx/conf.d/default.conf
@@ -4,7 +4,7 @@ server {
     listen [::]:80;
     location / {
         try_files $uri $uri/ =404;
-        add_header Access-Control-Allow-Origin "https://matrix-home.send.nrw";
+        add_header Access-Control-Allow-Origin: https://matrix-web.send.nrw
         add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization";
         add_header Access-Control-Allow-Credentials true;
     }