diff --git a/__test__/decode.spec.ts b/__test__/decode.spec.ts
index 66b1c099..3f2d9156 100644
--- a/__test__/decode.spec.ts
+++ b/__test__/decode.spec.ts
@@ -1,8 +1,9 @@
-import test from 'ava'
+import test from 'ava';
+import path from 'path';
 
-import { decode } from '../index.js'
+import { decode } from '../index.js';
 
-const dirname = new URL('.', import.meta.url).pathname
+const dirname = path.join(new URL('.', import.meta.url).pathname);
 
 test('decode', async (t) => {
   await decode(dirname + 'decode.png')
diff --git a/__test__/encode.spec.ts b/__test__/encode.spec.ts
index 08667702..546432f0 100644
--- a/__test__/encode.spec.ts
+++ b/__test__/encode.spec.ts
@@ -1,11 +1,13 @@
-import fs from 'node:fs'
-import test from 'ava'
+import test from 'ava';
+import fs from 'node:fs';
+import path from 'path';
 
-import { encode } from '../index.js'
+import { encode } from '../index.js';
 
-const dirname = new URL('.', import.meta.url).pathname
+const dirname = path.join(new URL('.', import.meta.url).pathname);
 
 test.afterEach(() => {
+  console.log('dirname', dirname);
   const output = dirname + 'output.png'
   if (fs.existsSync(output)) {
     fs.unlinkSync(output)