diff --git a/src/setup/repository.ts b/src/setup/repository.ts
index 341a27875..ff02a1560 100644
--- a/src/setup/repository.ts
+++ b/src/setup/repository.ts
@@ -2,13 +2,12 @@ import { ActionState } from "../action-common";
 import { isRunningLocalAction } from "../actions-util";
 import * as api from "../api-client";
 import { ActionsEnvVars } from "../environment";
-import { GITHUB_DOTCOM_URL } from "../github";
+import { GITHUB_DOTCOM_URL, type InstanceURL } from "../github";
 import {
   isRepositoryNwoStr,
   parseRepositoryNwo,
   type RepositoryNwoStr,
 } from "../repository";
-import { type InstanceURL } from "../util";
 
 /** The NWO of the standard CodeQL Action repository. */
 export const CODEQL_DEFAULT_ACTION_REPOSITORY = "github/codeql-action";
diff --git a/src/util.ts b/src/util.ts
index 032c158f4..7ba59c675 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -50,9 +50,6 @@ const BASE_DATABASE_OIDS_FILE_NAME = "base-database-oids.json";
  */
 const BROKEN_VERSIONS = ["0.0.0-20211207"];
 
-/** A string representing a GitHub instance. */
-export type InstanceURL = string;
-
 /**
  * Default name of the debugging artifact.
  */