diff --git a/lib/web/auth/github/index.js b/lib/web/auth/github/index.js
index afa5fa31..c1bf48f8 100644
--- a/lib/web/auth/github/index.js
+++ b/lib/web/auth/github/index.js
@@ -7,7 +7,7 @@ const config = require('../../../config')
 const response = require('../../../response')
 const { setReturnToFromReferer, passportGeneralCallback } = require('../utils')
 
-let githubAuth = module.exports = Router()
+const githubAuth = module.exports = Router()
 
 passport.use(new GithubStrategy({
   clientID: config.github.clientID,