diff --git a/conf/nginx.conf b/conf/nginx.conf
index 433d5d8..43ea818 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -26,7 +26,7 @@ location __PATH__/ {
 	more_set_headers Strict-Transport-Security "max-age=15768000;";
 	more_set_headers X-Content-Type-Options nosniff;
 	more_set_headers X-Frame-Options "SAMEORIGIN";
-	more_set_headers X-XSS-Protection "1; mode=block";
+	more_set_headers "X-XSS-Protection 1; mode=block";
 	more_set_headers X-Robots-Tag none;
 	more_set_headers X-Download-Options noopen;
 	more_set_headers X-Permitted-Cross-Domain-Policies none;