diff --git a/src/Swoole/Response.php b/src/Swoole/Response.php
index e9a38773..91de912a 100644
--- a/src/Swoole/Response.php
+++ b/src/Swoole/Response.php
@@ -91,7 +91,8 @@ public function sendCookies()
                 $cookie->getPath(),
                 $cookie->getDomain(),
                 $cookie->isSecure(),
-                $cookie->isHttpOnly()
+                $cookie->isHttpOnly(),
+                $cookie->getSameSite()
             );
         }
     }