diff --git a/README.md b/README.md
index d412f19..6b9bcde 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,19 @@ With configure, call it with:
 ./configure CC="sccache clang" CXX="sccache clang"
 ```
 
+## Using on GitHub Enterprise Server (GHES)
+
+When using the action on GitHub Enterprise Server installations a valid GitHub.com token must be provided.
+
+```
+- name: Run sccache-cache
+  uses: mozilla-actions/sccache-action@v0.0.5
+  with:
+    token: ${{ secrets.MY_GITHUB_TOKEN }}
+```
+
+Note that using https://github.com/actions/create-github-app-token is a better option than storing a fixed token in the repo secrets.
+
 ## Prepare a new release
 
 1. Update the example in README.md
diff --git a/src/setup.ts b/src/setup.ts
index bfce625..4994a33 100644
--- a/src/setup.ts
+++ b/src/setup.ts
@@ -31,7 +31,7 @@ async function setup() {
   if (version.length === 0) {
     // If no version is specified, the latest version is used by default.
     const token = core.getInput('token', {required: true});
-    const octokit = getOctokit(token);
+    const octokit = getOctokit(token, {baseUrl: 'https://api.github.com'});
     const release = await octokit.rest.repos.getLatestRelease({
       owner: 'mozilla',
       repo: 'sccache'