diff --git a/README.md b/README.md
index c283e8d6b54..158a46ead43 100644
--- a/README.md
+++ b/README.md
@@ -143,6 +143,7 @@ Following environment variables can be used as `step.env` keys
 |----------------|---------------------------------------|
 | `GITHUB_TOKEN` | [GITHUB_TOKEN](https://help.github.com/en/actions/configuring-and-managing-workflows/authenticating-with-the-github_token) as provided by `secrets` |
 | `GH_PAT`       | Use a [Personal Access Token](https://help.github.com/articles/creating-a-personal-access-token-for-the-command-line/) if you want to deploy to another repo |
+| `GIT_DOMAIN`   | Use another domain. Default `github.com` |
 
 ## Keep up-to-date with GitHub Dependabot
 
diff --git a/src/main.ts b/src/main.ts
index e06d4122490..7ff1676acbd 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -9,6 +9,7 @@ import * as util from './util';
 async function run() {
   try {
     const repo: string = core.getInput('repo') || process.env['GITHUB_REPOSITORY'] || '';
+    const domain: string = process.env['GIT_DOMAIN'] || 'github.com';
     const targetBranch: string = core.getInput('target_branch') || git.defaults.targetBranch;
     const keepHistory: boolean = /true/i.test(core.getInput('keep_history'));
     const allowEmptyCommit: boolean = /true/i.test(core.getInput('allow_empty_commit'));
@@ -35,7 +36,7 @@ async function run() {
       core.setFailed('You have to provide a GITHUB_TOKEN or GH_PAT');
       return;
     }
-    remoteURL = remoteURL.concat('@github.com/', repo, '.git');
+    remoteURL = remoteURL.concat('@', domain, '/', repo, '.git');
     core.debug(`remoteURL=${remoteURL}`);
 
     const remoteBranchExists: boolean = await git.remoteBranchExists(remoteURL, targetBranch);