diff --git a/cli/script.ts b/cli/script.ts
index fc9cea24be..a3e0282273 100644
--- a/cli/script.ts
+++ b/cli/script.ts
@@ -108,7 +108,7 @@ async function parseMetadataFile(
       await Deno.stat(metadataFilePath);
       let payload: any = yamlParse(await Deno.readTextFile(metadataFilePath));
       if (Array.isArray(payload?.["lock"])) {
-        payload = payload["lock"].join("\n");
+        payload["lock"] = payload["lock"].join("\n");
       }
       return {
         payload,