diff --git a/src/Illuminate/Http/Client/Response.php b/src/Illuminate/Http/Client/Response.php
index 79f4d8a439fa..fce149edc7ec 100644
--- a/src/Illuminate/Http/Client/Response.php
+++ b/src/Illuminate/Http/Client/Response.php
@@ -8,6 +8,9 @@
 use LogicException;
 use Stringable;
 
+/**
+ * @mixin \Psr\Http\Message\ResponseInterface
+ */
 class Response implements ArrayAccess, Stringable
 {
     use Concerns\DeterminesStatusCode, Macroable {