diff --git a/scripts/setup-hyperchain-config.ts b/scripts/setup-hyperchain-config.ts
index 6b5870a5da..1685895928 100644
--- a/scripts/setup-hyperchain-config.ts
+++ b/scripts/setup-hyperchain-config.ts
@@ -4,7 +4,7 @@ import { prompt } from "enquirer";
 import * as dotenv from "dotenv";
 import { parse as parseConnectionString } from "pg-connection-string";
 
-const buildAppConfig = (zkSyncEnvs: { [key: string]: string }) => ({
+const buildAppConfig = (zkSyncEnvs: { [key: string]: string }) => ([{
   networks: {
     apiUrl: "http://localhost:3020",
     verificationApiUrl: zkSyncEnvs.API_CONTRACT_VERIFICATION_URL || "",
@@ -19,7 +19,7 @@ const buildAppConfig = (zkSyncEnvs: { [key: string]: string }) => ({
     published: true,
     rpcUrl: zkSyncEnvs.API_WEB3_JSON_RPC_HTTP_URL || "",
   }
-});
+}]);
 
 const buildWorkerConfig = (zkSyncEnvs: { [key: string]: string }) => {
   const dbConfig = parseConnectionString(zkSyncEnvs.DATABASE_URL);