diff --git a/lib/app/index.js b/lib/app/index.js
index 7ba2b65132..fe30f2e479 100644
--- a/lib/app/index.js
+++ b/lib/app/index.js
@@ -44,7 +44,11 @@ const defaultTransition = <%=
 %>
 
 async function createApp (ssrContext) {
-  const router = createRouter(ssrContext)
+  if (createRouter.constructor.name === 'AsyncFunction') {
+    const router = await createRouter(ssrContext)
+  } else {
+    const router = createRouter(ssrContext)
+  }
 
   <% if (store) { %>
   const store = createStore(ssrContext)