diff --git a/models/config.go b/models/config.go
index 14228b4..a7d5335 100644
--- a/models/config.go
+++ b/models/config.go
@@ -9,12 +9,13 @@ import (
 )
 
 var (
-	_, b, _, _ = runtime.Caller(0)
-	Root       = filepath.Join(filepath.Dir(b), "..")
-	Viper      *viper.Viper
+	Root  string
+	Viper *viper.Viper
 )
 
 func init() {
+	_, b, _, _ := runtime.Caller(0)
+	Root = filepath.Join(filepath.Dir(b), "..")
 	config_file := filepath.Join(Root, "data", "config.yaml")
 	viper.SetConfigFile(config_file)
 	if err := viper.ReadInConfig(); err != nil {