diff --git a/packages/platform-web/src/shuvi-app/app/client.ts b/packages/platform-web/src/shuvi-app/app/client.ts
index db1fbaf94..5fd54f028 100644
--- a/packages/platform-web/src/shuvi-app/app/client.ts
+++ b/packages/platform-web/src/shuvi-app/app/client.ts
@@ -152,6 +152,7 @@ export const createApp: CreateAppClient = ({
       if (isResponse(error) && error.status >= 400 && error.status < 600) {
         // client error has no status code
         app.setError({
+          code: error.status, // Note: used in the custom Error component (error.tsx props.errorCode)
           message: error.data
         });
         next();