diff --git a/lib/config/default.js b/lib/config/default.js
index e3aee6ca..64113c43 100644
--- a/lib/config/default.js
+++ b/lib/config/default.js
@@ -104,6 +104,7 @@ module.exports = {
     consumerSecret: undefined
   },
   github: {
+    enterpriseURL: undefined, // if you use github.com, not need to specify
     clientID: undefined,
     clientSecret: undefined
   },
diff --git a/lib/config/environment.js b/lib/config/environment.js
index 905f0e0d..4defcac6 100644
--- a/lib/config/environment.js
+++ b/lib/config/environment.js
@@ -66,6 +66,7 @@ module.exports = {
     consumerSecret: process.env.CMD_TWITTER_CONSUMERSECRET
   },
   github: {
+    enterpriseURL: process.env.CMD_GITHUB_ENTERPRISE_URL,
     clientID: process.env.CMD_GITHUB_CLIENTID,
     clientSecret: process.env.CMD_GITHUB_CLIENTSECRET
   },
diff --git a/lib/models/user.js b/lib/models/user.js
index ba817c0b..19836029 100644
--- a/lib/models/user.js
+++ b/lib/models/user.js
@@ -103,7 +103,8 @@ module.exports = function (sequelize, DataTypes) {
         else photo += '?size=bigger'
         break
       case 'github':
-        photo = 'https://avatars.githubusercontent.com/u/' + profile.id
+        if (profile.photos && profile.photos[0]) photo = profile.photos[0].value.replace('?', '')
+        else photo = 'https://avatars.githubusercontent.com/u/' + profile.id
         if (bigger) photo += '?s=400'
         else photo += '?s=96'
         break
diff --git a/lib/web/auth/github/index.js b/lib/web/auth/github/index.js
index c1bf48f8..0609f6b3 100644
--- a/lib/web/auth/github/index.js
+++ b/lib/web/auth/github/index.js
@@ -6,13 +6,21 @@ const GithubStrategy = require('passport-github').Strategy
 const config = require('../../../config')
 const response = require('../../../response')
 const { setReturnToFromReferer, passportGeneralCallback } = require('../utils')
+const { URL } = require('url')
 
 const githubAuth = module.exports = Router()
 
+function githubUrl (path) {
+  return config.github.enterpriseURL && new URL(path, config.github.enterpriseURL).toString()
+}
+
 passport.use(new GithubStrategy({
   clientID: config.github.clientID,
   clientSecret: config.github.clientSecret,
-  callbackURL: config.serverURL + '/auth/github/callback'
+  callbackURL: config.serverURL + '/auth/github/callback',
+  authorizationURL: githubUrl('login/oauth/authorize'),
+  tokenURL: githubUrl('login/oauth/access_token'),
+  userProfileURL: githubUrl('api/v3/user')
 }, passportGeneralCallback))
 
 githubAuth.get('/auth/github', function (req, res, next) {