diff --git a/desktop/app/src/devices/MetroDevice.tsx b/desktop/app/src/devices/MetroDevice.tsx
index c9e1ead48..848c0b747 100644
--- a/desktop/app/src/devices/MetroDevice.tsx
+++ b/desktop/app/src/devices/MetroDevice.tsx
@@ -10,6 +10,7 @@
 import {LogLevel} from 'flipper-plugin';
 import BaseDevice from './BaseDevice';
 import {EventEmitter} from 'events';
+import util from 'util';
 
 // From xplat/js/metro/packages/metro/src/lib/reporting.js
 export type BundleDetails = {
@@ -161,11 +162,11 @@ export default class MetroDevice extends BaseDevice {
         tid: 0,
         type,
         tag: message.type,
-        message: message.data
-          .map((v) =>
+        message: util.format(
+          ...message.data.map((v) =>
             v && typeof v === 'object' ? JSON.stringify(v, null, 2) : v,
-          )
-          .join(' '),
+          ),
+        ),
       });
     } else {
       const level = getLoglevelFromMessageType(message.type);