diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index e82ed66..0c240f8 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -52,7 +52,7 @@ http {
 
         location / {
             if ($request_method = 'OPTIONS') {
-                add_header 'Access-Control-Allow-Origin' 'cors-school.nilstrieb.dev';
+                add_header 'Access-Control-Allow-Origin' 'https://cors-school.nilstrieb.dev';
                 add_header 'Access-Control-Allow-Credentials' 'true';
                 add_header 'Access-Control-Allow-Methods' 'GET, POST, DELETE, PUT, OPTIONS';
                 add_header 'Access-Control-Allow-Headers' 'token,refresh-token';