diff --git a/src/RealTimeClient.php b/src/RealTimeClient.php
index 8cb402b..3af3163 100644
--- a/src/RealTimeClient.php
+++ b/src/RealTimeClient.php
@@ -398,11 +398,11 @@ private function onMessage(WebSocketMessageInterface $message)
                     break;
 
                 case 'channel_archive':
-                    $this->channels[$payload['channel']['id']]->data['is_archived'] = true;
+                    $this->channels[$payload['channel']]->data['is_archived'] = true;
                     break;
 
                 case 'channel_unarchive':
-                    $this->channels[$payload['channel']['id']]->data['is_archived'] = false;
+                    $this->channels[$payload['channel']]->data['is_archived'] = false;
                     break;
 
                 case 'group_joined':