diff --git a/src/pusher/metrics/brain-metrics.ts b/src/pusher/metrics/brain-metrics.ts
index 0dc405e..1e27071 100644
--- a/src/pusher/metrics/brain-metrics.ts
+++ b/src/pusher/metrics/brain-metrics.ts
@@ -24,7 +24,7 @@ export class PusherBrainMetrics extends BrainMetrics {
                 connections,
             })),
             started: this.connections.started.toISOString(),
-            ...this.metrics[namespace] || {},
+            ...(this.metrics[namespace] || {}),
         });
 
         this.snapshotInProgress = false;