diff --git a/.changeset/loud-ligers-draw.md b/.changeset/loud-ligers-draw.md
new file mode 100644
index 00000000..9c0ae3af
--- /dev/null
+++ b/.changeset/loud-ligers-draw.md
@@ -0,0 +1,5 @@
+---
+'@hono/vite-dev-server': patch
+---
+
+run yarn format
diff --git a/packages/dev-server/e2e/e2e.test.ts b/packages/dev-server/e2e/e2e.test.ts
index 132b6f4b..f6bc9c5e 100644
--- a/packages/dev-server/e2e/e2e.test.ts
+++ b/packages/dev-server/e2e/e2e.test.ts
@@ -138,5 +138,5 @@ test('Should not crash when receiving a HEAD request', async () => {
 
 test('Should return ip address', async ({ page }) => {
   const response = await page.goto('/ip')
-  expect(['127.0.0.1', '::1'].includes(await response?.text() ?? '')).toBe(true)
+  expect(['127.0.0.1', '::1'].includes((await response?.text()) ?? '')).toBe(true)
 })