diff --git a/hackernews-async-ts/config/config.local.ts b/hackernews-async-ts/config/config.local.ts
index c790a63..accf83e 100644
--- a/hackernews-async-ts/config/config.local.ts
+++ b/hackernews-async-ts/config/config.local.ts
@@ -4,6 +4,7 @@ export default () => {
   const config: DefaultConfig = {};
   config.news = {
     pageSize: 20,
+    serverUrl: '//127.0.0.1',
   };
   return config;
 };
diff --git a/hackernews-async-ts/config/config.prod.ts b/hackernews-async-ts/config/config.prod.ts
index a1cb344..c871939 100644
--- a/hackernews-async-ts/config/config.prod.ts
+++ b/hackernews-async-ts/config/config.prod.ts
@@ -4,6 +4,7 @@ export default () => {
   const config: DefaultConfig = {};
   config.news = {
     pageSize: 30,
+    serverUrl: '//foo.com',
   };
   return config;
 };