diff --git a/cmd/transocks/sample.toml b/cmd/transocks/sample.toml
index 8b32d0d..7ed942a 100644
--- a/cmd/transocks/sample.toml
+++ b/cmd/transocks/sample.toml
@@ -5,5 +5,6 @@ listen = "localhost:1081"
 proxy_url = "socks5://10.20.30.40:1080"  # for SOCKS5 server
 #proxy_url = "http://10.20.30.40:3128"   # for HTTP proxy server
 
-log_level = "debug"
-log_file = "/var/log/transocks.log"
+[log]
+level = "debug"
+filename = "/var/log/transocks.log"