diff --git a/packages/playwright-core/src/utils/happy-eyeballs.ts b/packages/playwright-core/src/utils/happy-eyeballs.ts
index e17d6a7026..936dfb739d 100644
--- a/packages/playwright-core/src/utils/happy-eyeballs.ts
+++ b/packages/playwright-core/src/utils/happy-eyeballs.ts
@@ -130,7 +130,7 @@ function clientRequestArgsToHostName(options: http.ClientRequestArgs): string {
   if (options.hostname)
     return options.hostname;
   if (options.host)
-    return options.host.split(':')[0];
+    return options.host;
   throw new Error('Either options.hostname or options.host must be provided');
 }
 
diff --git a/tests/library/browsercontext-fetch-happy-eyeballs.spec.ts b/tests/library/browsercontext-fetch-happy-eyeballs.spec.ts
index 9de9cd058a..a7e66e5cc7 100644
--- a/tests/library/browsercontext-fetch-happy-eyeballs.spec.ts
+++ b/tests/library/browsercontext-fetch-happy-eyeballs.spec.ts
@@ -60,3 +60,9 @@ it('https post should work with ignoreHTTPSErrors option', async ({ context, htt
   expect(interceptedHostnameLookup).toBe('localhost');
 });
 
+
+it('should work with ip6 and port as the host', async ({ request, server }) => {
+  const response = await request.get(`http://[::1]:${server.PORT}/simple.json`);
+  expect(response.url()).toBe(`http://[::1]:${server.PORT}/simple.json`);
+  expect(response).toBeOK();
+});