diff --git a/conf/nginx.conf b/conf/nginx.conf
index a4bbe4c..a591ffb 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -11,7 +11,7 @@ location /.well-known/matrix/server {
 
 location /.well-known/matrix/client {
     return 200 '{ "m.homeserver": { "base_url": "https://__DOMAIN__" } }';
-    more_set_headers Access-Control-Allow-Origin: *";
+    more_set_headers "Access-Control-Allow-Origin: *";
 }
 
 location /_matrix {