diff --git a/packages/netlify-cms-backend-git-gateway/src/GitHubAPI.js b/packages/netlify-cms-backend-git-gateway/src/GitHubAPI.js
index 2ba63299..424cd3eb 100644
--- a/packages/netlify-cms-backend-git-gateway/src/GitHubAPI.js
+++ b/packages/netlify-cms-backend-git-gateway/src/GitHubAPI.js
@@ -8,6 +8,7 @@ export default class API extends GithubAPI {
     this.tokenPromise = config.tokenPromise;
     this.commitAuthor = config.commitAuthor;
     this.repoURL = '';
+    this.originRepoURL = '';
   }
 
   hasWriteAccess() {