diff --git a/lib/app.js b/lib/app.js
index 1120451672..28500ad1a0 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -1,4 +1,3 @@
-require('dotenv').config();
 require('module-alias/register');
 require('./utils/request-wrapper');
 
diff --git a/lib/config.js b/lib/config.js
index df0f1042de..f3e5b4cdd9 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -1,3 +1,4 @@
+require('dotenv').config();
 let envs = process.env;
 let value;
 
@@ -106,5 +107,7 @@ module.exports = {
         envs = Object.assign(process.env, env);
         calculateValue();
     },
-    value,
+    get value() {
+        return value;
+    },
 };
diff --git a/lib/pkg.js b/lib/pkg.js
index f02cacb6bf..caba9a1706 100644
--- a/lib/pkg.js
+++ b/lib/pkg.js
@@ -1,5 +1,5 @@
-let app;
 const config = require('./config');
+let app;
 
 module.exports = {
     init: (conf) => {