diff --git a/src/HttpApi/Controllers/TriggerEventController.php b/src/HttpApi/Controllers/TriggerEventController.php
index e09771bd9d..e997fd484d 100644
--- a/src/HttpApi/Controllers/TriggerEventController.php
+++ b/src/HttpApi/Controllers/TriggerEventController.php
@@ -16,7 +16,7 @@ public function __invoke(Request $request)
         if ($payload->has('channel')) {
             $channels = [$payload->get('channel')];
         } else {
-            $channels = $payload->get('channels', []);
+            $channels = $payload->all()['channels'] ?? [];
 
             if (is_string($channels)) {
                 $channels = [$channels];