diff --git a/x-pack/test/functional_cors/config.ts b/x-pack/test/functional_cors/config.ts
index b792aa2d183b6..737cccc5ae33b 100644
--- a/x-pack/test/functional_cors/config.ts
+++ b/x-pack/test/functional_cors/config.ts
@@ -27,7 +27,7 @@ export default async function ({ readConfigFile }: FtrConfigProviderContext) {
   };
 
   const { protocol, hostname } = kbnTestConfig.getUrlParts();
-  const pluginPort = await getPort({ port: 9000 });
+  const pluginPort = await getPort();
   const originUrl = Url.format({
     protocol,
     hostname,