diff --git a/docker/nginx/nginx.conf b/docker/nginx/nginx.conf
index f67438e5..64397630 100644
--- a/docker/nginx/nginx.conf
+++ b/docker/nginx/nginx.conf
@@ -50,7 +50,7 @@ http {
         '"$upstream_http_content_type" "$upstream_cache_status" '
         '"$server_alias" "$sent_http_skynet_skylink" '
         '$upstream_connect_time $upstream_header_time '
-        '$request_time "$hns_domain" "$skylink"';
+        '$request_time "$hns_domain" "$skylink" $upstream_http_skynet_cache_ratio';
 
     access_log  logs/access.log  main;