diff --git a/packages/test/test-version-utils/compat-workspaces/full/package.json b/packages/test/test-version-utils/compat-workspaces/full/package.json
index 7c8dd93cfba6..1aac2614c35f 100644
--- a/packages/test/test-version-utils/compat-workspaces/full/package.json
+++ b/packages/test/test-version-utils/compat-workspaces/full/package.json
@@ -11,6 +11,6 @@
   "license": "MIT",
   "author": "Microsoft and contributors",
   "scripts": {
-    "preinstall": "node ../scripts/only-pnpm.cjs"
+    "preinstall": "node ../../../../../scripts/only-pnpm.cjs"
   }
 }
diff --git a/packages/test/test-version-utils/compat-workspaces/scripts/only-pnpm.cjs b/packages/test/test-version-utils/compat-workspaces/scripts/only-pnpm.cjs
deleted file mode 100644
index 91d351b71e3b..000000000000
--- a/packages/test/test-version-utils/compat-workspaces/scripts/only-pnpm.cjs
+++ /dev/null
@@ -1,29 +0,0 @@
-/*!
- * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
- * Licensed under the MIT License.
- */
-
-/**
- * This script is used to prompt users to use pnpm in a project. This helps guide new contributors to the right tools.
- * To use this script in a project, add a "preinstall" script to the package.json that calls this script.
- */
-
-const message = `
-╔══════════════════════════════════════════════════════════════════╗
-║                                                                  ║
-║   Use "pnpm install" for installation in this project.           ║
-║                                                                  ║
-║   If you don't have pnpm, enable corepack via "corepack enable". ║
-║   Then run "pnpm install" to install dependencies.               ║
-║                                                                  ║
-║   For more details, see the README.                              ║
-║                                                                  ║
-╚══════════════════════════════════════════════════════════════════╝
-`;
-
-const used_pnpm = process.env.npm_config_user_agent.startsWith(`pnpm`);
-
-if (!used_pnpm) {
-	console.error(message);
-	process.exit(1);
-}
diff --git a/scripts/only-pnpm.cjs b/scripts/only-pnpm.cjs
index 91d351b71e3b..5544c6646283 100644
--- a/scripts/only-pnpm.cjs
+++ b/scripts/only-pnpm.cjs
@@ -21,7 +21,7 @@ const message = `
 ╚══════════════════════════════════════════════════════════════════╝
 `;
 
-const used_pnpm = process.env.npm_config_user_agent.startsWith(`pnpm`);
+const used_pnpm = (process.env.npm_execpath ?? "").includes(`pnpm`);
 
 if (!used_pnpm) {
 	console.error(message);