diff --git a/README.md b/README.md
index 439c7db..e20d01d 100644
--- a/README.md
+++ b/README.md
@@ -109,7 +109,7 @@ Nginx needs to be compiled with the geoip2 module: https://github.com/leev/ngx_h
 ```nginx
 geoip2 /config/geoip2db/GeoLite2-City.mmdb {
 auto_reload 5m;
-$geoip2_data_country_code country iso_code;
+$geoip2_data_country_iso_code country iso_code;
 $geoip2_data_city_name city names en;
 }
 
@@ -117,7 +117,7 @@ log_format custom '$remote_addr - $remote_user [$time_local]'
            '"$request" $status $body_bytes_sent'
            '"$http_referer" $host "$http_user_agent"'
            '"$request_time" "$upstream_connect_time"'
-           '"$geoip2_data_city_name" "$geoip2_data_country_code"';
+           '"$geoip2_data_city_name" "$geoip2_data_country_iso_code"';
  ```
  
  2. Set the access log use the `custom` log format.