diff --git a/src/Symfony/Component/Messenger/Bridge/Redis/Transport/RedisReceiver.php b/src/Symfony/Component/Messenger/Bridge/Redis/Transport/RedisReceiver.php
index ab004b929abe9..1a63d334db0dd 100644
--- a/src/Symfony/Component/Messenger/Bridge/Redis/Transport/RedisReceiver.php
+++ b/src/Symfony/Component/Messenger/Bridge/Redis/Transport/RedisReceiver.php
@@ -46,6 +46,10 @@ public function get(): iterable
 
         $redisEnvelope = json_decode($message['data']['message'] ?? '', true);
 
+        if (null === $redisEnvelope) {
+            return [];
+        }
+
         try {
             if (\array_key_exists('body', $redisEnvelope) && \array_key_exists('headers', $redisEnvelope)) {
                 $envelope = $this->serializer->decode([