diff --git a/nginx_rock/etc/nginx.conf b/nginx_rock/etc/nginx.conf
index d2882b88..911a7b71 100644
--- a/nginx_rock/etc/nginx.conf
+++ b/nginx_rock/etc/nginx.conf
@@ -72,7 +72,7 @@ http {
       add_header Cache-Control 'no-cache,private';
       include common_headers.conf;
       client_max_body_size 0;
-      proxy_read_timeout 300;
+      proxy_read_timeout 300s;
       proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
       proxy_set_header X-Forwarded-Host $http_host;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;