diff --git a/src/server.ts b/src/server.ts
index c02fcc8..8148f8f 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -21,7 +21,7 @@ export const serve = (
   listeningListener?: (info: AddressInfo) => void
 ): ServerType => {
   const server = createAdaptorServer(options)
-  server.listen(options?.port ?? 3000, options.hostname ?? '0.0.0.0', () => {
+  server.listen(options?.port ?? 3000, options.hostname, () => {
     const serverInfo = server.address() as AddressInfo
     listeningListener && listeningListener(serverInfo)
   })
diff --git a/test/server.test.ts b/test/server.test.ts
index d1cce78..d4e6f82 100644
--- a/test/server.test.ts
+++ b/test/server.test.ts
@@ -11,7 +11,7 @@ import { createServer as createHttp2Server } from 'node:http2'
 import { createServer as createHTTPSServer } from 'node:https'
 import { GlobalRequest, Request as LightweightRequest, getAbortController } from '../src/request'
 import { GlobalResponse, Response as LightweightResponse } from '../src/response'
-import { createAdaptorServer } from '../src/server'
+import { createAdaptorServer, serve } from '../src/server'
 import type { HttpBindings } from '../src/types'
 
 describe('Basic', () => {
@@ -908,3 +908,19 @@ describe('Memory leak test', () => {
     expect(counter).toBe(0)
   })
 })
+
+describe('serve', () => {
+  const app = new Hono()
+  app.get('/', (c) => c.newResponse(null, 200))
+  serve(app)
+
+  it('should serve on ipv4', async () => {
+    const response = await fetch('http://localhost:3000')
+    expect(response.status).toBe(200)
+  })
+
+  it('should serve on ipv6', async () => {
+    const response = await fetch('http://[::1]:3000')
+    expect(response.status).toBe(200)
+  })
+})