diff --git a/lib/web/auth/google/index.js b/lib/web/auth/google/index.js
index ad9bcd7a..b9a8a142 100644
--- a/lib/web/auth/google/index.js
+++ b/lib/web/auth/google/index.js
@@ -6,7 +6,7 @@ var GoogleStrategy = require('passport-google-oauth20').Strategy
 const config = require('../../../config')
 const { setReturnToFromReferer, passportGeneralCallback } = require('../utils')
 
-let googleAuth = module.exports = Router()
+const googleAuth = module.exports = Router()
 
 passport.use(new GoogleStrategy({
   clientID: config.google.clientID,