github
diff --git a/‎CHANGELOG.md
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diff --git a/‎lib/setup-codeql.js
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diff --git a/‎lib/setup-codeql.js.map
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diff --git a/‎src/setup-codeql.ts
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@@ -4,7 +4,7 @@ See the [releases page](https://github.com/github/codeql-action/releases) for th
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Provide an authentication token when downloading the CodeQL Bundle from the API of a GitHub Enterprise Server instance. [#1945](https://github.com/github/codeql-action/pull/1945)
 
 ## 2.22.2 - 12 Oct 2023
 
 
@@ -546,7 +546,10 @@ export async function downloadCodeQL(
   let authorization: string | undefined = undefined;
   if (searchParams.has("token")) {
     logger.debug("CodeQL tools URL contains an authorization token.");
-  } else if (codeqlURL.startsWith(`${apiDetails.url}/`)) {
+  } else if (
+    codeqlURL.startsWith(`${apiDetails.url}/`) ||
+    (apiDetails.apiURL && codeqlURL.startsWith(`${apiDetails.apiURL}/`))
+  ) {
     logger.debug("Providing an authorization token to download CodeQL tools.");
     authorization = `token ${apiDetails.auth}`;
   } else {