diff --git a/lib/platform/github/index.js b/lib/platform/github/index.js
index c98dac89365ff1cbfbae1c4d0e75c90b975a64f7..2c76964f6d1e969c339d858a59748d1b4edacf1a 100644
--- a/lib/platform/github/index.js
+++ b/lib/platform/github/index.js
@@ -1,6 +1,6 @@
 const get = require('./gh-got-wrapper');
 
-const config = {};
+let config = {};
 
 module.exports = {
   // Initialization
@@ -72,10 +72,8 @@ async function initRepo(repoName, token, endpoint) {
   if (endpoint) {
     process.env.GITHUB_ENDPOINT = endpoint;
   }
+  config = {};
   config.repoName = repoName;
-  delete config.baseCommitSHA;
-  config.fileList = null;
-  config.prList = null;
   config.prs = {};
   const platformConfig = {};
   let res;