diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index ed809704..ca4a4aa1 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -16,6 +16,7 @@ http {
     charset utf-8;
 
     sendfile on;
+    sendfile_max_chunk 512k;
     tcp_nopush on;
     keepalive_requests 1000;
     keepalive_timeout 65;