diff --git a/src/Illuminate/Http/Client/PendingRequest.php b/src/Illuminate/Http/Client/PendingRequest.php
index 08587e1e1fd9..304151cacae0 100644
--- a/src/Illuminate/Http/Client/PendingRequest.php
+++ b/src/Illuminate/Http/Client/PendingRequest.php
@@ -87,7 +87,7 @@ class PendingRequest
     /**
      * The callbacks that should execute before the request is sent.
      *
-     * @var array
+     * @var \Illuminate\Support\Collection
      */
     protected $beforeSendingCallbacks;