diff --git a/packages/client/modules/tests/node-half.spec.ts b/packages/client/modules/tests/node-half.spec.ts
index 37c41d9742..bc829ab7db 100644
--- a/packages/client/modules/tests/node-half.spec.ts
+++ b/packages/client/modules/tests/node-half.spec.ts
@@ -1,6 +1,6 @@
 /** Node-half composition diagnostics for package metadata and built client bundles. */
 
-import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from 'node:fs'
+import { mkdirSync, mkdtempSync, realpathSync, rmSync, writeFileSync } from 'node:fs'
 import { tmpdir } from 'node:os'
 import { join } from 'node:path'
 import { pathToFileURL } from 'node:url'
@@ -18,7 +18,7 @@ afterEach(() => {
 
 /** Create a resolvable dshClient package whose client export points at the returned path. */
 function writePackage(packageName: string): string {
-  root ??= mkdtempSync(join(tmpdir(), 'dsh-client-modules-'))
+  root ??= realpathSync(mkdtempSync(join(tmpdir(), 'dsh-client-modules-')))
   const pkgRoot = join(root, 'node_modules', ...packageName.split('/'))
   const clientPath = join(pkgRoot, 'lib', 'client.js')
   mkdirSync(pkgRoot, { recursive: true })