diff --git a/hokbu-nginx/default.conf b/hokbu-nginx/default.conf
index eff555e..3fa9c82 100644
--- a/hokbu-nginx/default.conf
+++ b/hokbu-nginx/default.conf
@@ -2,7 +2,7 @@ upstream backend {
   server hapsing:5000;
 }
 
-limit_req_zone $binary_remote_addr zone=ip:10m rate=3r/m;
+limit_req_zone $http_x_forwarded_for zone=ip:10m rate=3r/m;
 
 server {
   listen 80;