diff --git a/config/config.go b/config/config.go
index e74bc1c..a00438c 100644
--- a/config/config.go
+++ b/config/config.go
@@ -3,6 +3,8 @@ package config
 import "flag"
 
 const (
+	ConfigFileName = "config.json"
+
 	FlagConfigDirName         = "config-dir"
 	FlagLogConfigFilePathName = "log-config-path"
 	FlagPidFilePathName       = "pid-path"