diff --git a/packages/http-server/src/__tests__/integration/http-server.integration.ts b/packages/http-server/src/__tests__/integration/http-server.integration.ts
index ced00deeec59..2727c67e6a5d 100644
--- a/packages/http-server/src/__tests__/integration/http-server.integration.ts
+++ b/packages/http-server/src/__tests__/integration/http-server.integration.ts
@@ -29,7 +29,7 @@ describe('HttpServer (integration)', () => {
       host: '::1',
     } as HttpOptions);
     await server.start();
-    expect(getAddressFamily(server)).to.equal('IPv6');
+    expect(getAddressFamily(server)).to.equalOneOf(6, 'IPv6');
     const response = await httpGetAsync(server.url);
     expect(response.statusCode).to.equal(200);
   });
@@ -225,7 +225,7 @@ describe('HttpServer (integration)', () => {
   it('supports HTTP over IPv4', async () => {
     server = new HttpServer(dummyRequestHandler, {host: '127.0.0.1'});
     await server.start();
-    expect(getAddressFamily(server)).to.equal('IPv4');
+    expect(getAddressFamily(server)).to.equalOneOf(4, 'IPv4');
     const response = await httpGetAsync(server.url);
     expect(response.statusCode).to.equal(200);
   });
@@ -233,7 +233,7 @@ describe('HttpServer (integration)', () => {
   skipOnTravis(it, 'supports HTTP over IPv6', async () => {
     server = new HttpServer(dummyRequestHandler, {host: '::1'});
     await server.start();
-    expect(getAddressFamily(server)).to.equal('IPv6');
+    expect(getAddressFamily(server)).to.equalOneOf(6, 'IPv6');
     const response = await httpGetAsync(server.url);
     expect(response.statusCode).to.equal(200);
   });
@@ -258,7 +258,7 @@ describe('HttpServer (integration)', () => {
       host: '::1',
     });
     await httpsServer.start();
-    expect(getAddressFamily(httpsServer)).to.equal('IPv6');
+    expect(getAddressFamily(httpsServer)).to.equalOneOf(6, 'IPv6');
     const response = await httpsGetAsync(httpsServer.url);
     expect(response.statusCode).to.equal(200);
   });
diff --git a/packages/http-server/src/http-server.ts b/packages/http-server/src/http-server.ts
index ac6efee3ea8a..bf4ee286b4fe 100644
--- a/packages/http-server/src/http-server.ts
+++ b/packages/http-server/src/http-server.ts
@@ -231,7 +231,7 @@ export class HttpServer {
       return `${this.protocol}+unix://${basePath}`;
     }
     let host = this.host;
-    if (this._address.family === 'IPv6') {
+    if ([6, 'IPv6'].includes(this._address.family)) {
       if (host === '::') host = '::1';
       host = `[${host}]`;
     } else if (host === '0.0.0.0') {