diff --git a/frontend/src/pages/device/components/DeviceLog.vue b/frontend/src/pages/device/components/DeviceLog.vue
index 68117bbfb..75e3a0215 100644
--- a/frontend/src/pages/device/components/DeviceLog.vue
+++ b/frontend/src/pages/device/components/DeviceLog.vue
@@ -50,7 +50,7 @@ export default {
     },
     unmounted () {
         // need to unsubscribe here
-        const topic = `ff/v1/${this.device.team.id}/d/${this.device.id}/logs`
+        // const topic = `ff/v1/${this.device.team.id}/d/${this.device.id}/logs`
         // this.client.publish(`${topic}/heartbeat`, 'leaving')
         setTimeout(() => this.disconnectMQTT())
         clearInterval(this.keepAliveInterval)