diff --git a/conf/nginx.conf b/conf/nginx.conf
index 4f762ac..f3fb881 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -3,12 +3,11 @@
 location __PATH__/ {
 
     # CORS support
-    add_header Access-Control-Allow-Origin *;
+    more_set_headers 'Access-Control-Allow-Origin: *';
 
         # Handling preflight requests
     if ($request_method = OPTIONS) {
-        add_header Access-Control-Allow-Methods *;
-        add_header Access-Control-Allow-Headers *;
+        more_set_headers 'Access-Control-Allow-Methods: *' 'Access-Control-Allow-Headers: *';
     }
 
   # Path to source