diff --git a/conf/nginx/nginx.conf b/conf/nginx/nginx.conf
index 50e8b78..84a450d 100644
--- a/conf/nginx/nginx.conf
+++ b/conf/nginx/nginx.conf
@@ -50,7 +50,7 @@ http {
     proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=my_cache:10m inactive=60m;
 
     # 定义缓存键和有效期
-    proxy_cache_key "$scheme_$request_method_$host_$request_uri";
+    proxy_cache_key "$scheme$request_method$host$request_uri";
     proxy_cache_valid 200 1m;
     proxy_cache_valid 404 1m;