diff --git a/src/ApiClient.php b/src/ApiClient.php
index 3c97359..33a9108 100644
--- a/src/ApiClient.php
+++ b/src/ApiClient.php
@@ -269,7 +269,7 @@ public function getDMByUserId($id)
         return $this->apiCall('im.open', [
             'user' => $id,
         ])->then(function (Payload $response) {
-            return $this->getDMById($response['channel']);
+            return $this->getDMById($response['channel']['id']);
         });
     }