diff --git a/packages/backend/src/managers/playground.ts b/packages/backend/src/managers/playground.ts
index 54e017487..ab7d58344 100644
--- a/packages/backend/src/managers/playground.ts
+++ b/packages/backend/src/managers/playground.ts
@@ -223,7 +223,7 @@ export class PlayGroundManager {
     // post the data
     post_req.write(post_data);
     post_req.end();
-    post_req.on('error', (error) => {
+    post_req.on('error', error => {
       console.error('connection on error.');
       const q = this.queries.get(query.id);
       q.error = `Something went wrong while trying to request model.${String(error)}`;