diff --git a/src/components/Manga/handleComicData.test.ts b/src/components/Manga/handleComicData.test.ts
index 5ec306fe..c09f7d6e 100644
--- a/src/components/Manga/handleComicData.test.ts
+++ b/src/components/Manga/handleComicData.test.ts
@@ -1,3 +1,5 @@
+// @vitest-environment jsdom
+
 import { beforeEach, expect, it } from 'vitest';
 
 import { handleComicData, autoCloseFill } from './handleComicData';
diff --git a/vitest.config.ts b/vitest.config.ts
new file mode 100644
index 00000000..3e9dd460
--- /dev/null
+++ b/vitest.config.ts
@@ -0,0 +1,12 @@
+import { resolve, dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import { defineConfig } from 'vitest/config';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+
+export default defineConfig({
+  test: {
+    alias: { helper: resolve(__dirname, './src/helper') },
+  },
+});