diff --git a/packages/library/tests/supporting.test.mjs b/packages/library/tests/supporting.test.mjs
index a6db94241..02ed5696d 100644
--- a/packages/library/tests/supporting.test.mjs
+++ b/packages/library/tests/supporting.test.mjs
@@ -1,5 +1,6 @@
 import test from 'node:test';
 import assert from 'node:assert/strict';
+import { inspect } from 'node:util';
 import { LibraryError, supportingPath } from '../src/index.mjs';
 import { mapping } from './helpers.mjs';
 
@@ -24,7 +25,7 @@ const tree = [
   blob('Harbor Notes/Places/Island.md'),
 ];
 const refuses = (universe, path, pattern) => assert.throws(() => supportingPath(m, universe, path, tree),
-  e => e instanceof LibraryError && e.code === 'library-write-story-path' && pattern.test(e.message), JSON.stringify(path));
+  e => e instanceof LibraryError && e.code === 'library-write-story-path' && pattern.test(e.message), inspect(path));
 
 test('C2-01d: a path passes at book level, universe level, in a draft and in a folder in both lists', () => {
   for (const [universe, path] of [['harbor', 'Book One/Notes/Characters/New.md'], ['harbor', 'Book One/Notes/Existing.md'],