diff --git a/sample/nginx.conf b/sample/nginx.conf
index bedc55713caa8..b4a0fac8bee7a 100644
--- a/sample/nginx.conf
+++ b/sample/nginx.conf
@@ -37,7 +37,7 @@ server {
     proxy_pass http://127.0.0.1:9200;
     proxy_read_timeout 90;
   }
-  location ~ ^/.*/_mapping$ {
+  location ~ ^/.*/_mapping {
     proxy_pass http://127.0.0.1:9200;
     proxy_read_timeout 90;
   }