diff --git a/web/misc/nginx/rewrite/obf.conf b/web/misc/nginx/rewrite/obf.conf
index 8360c682d..167df8e81 100644
--- a/web/misc/nginx/rewrite/obf.conf
+++ b/web/misc/nginx/rewrite/obf.conf
@@ -1,4 +1,5 @@
-#
+# 在http目录下配置
+# lua_shared_dict obf_cache 64m;
 
 # 混淆配置
 body_filter_by_lua_block {