diff --git a/CoroutineClient.php b/CoroutineClient.php
index 7458bd1..e218686 100644
--- a/CoroutineClient.php
+++ b/CoroutineClient.php
@@ -34,10 +34,6 @@ class CoroutineClient extends ClientAbstracts
         if (!str_starts_with($path, '/')) {
             $path = '/' . $path;
         }
-        $host = $this->getHost();
-        if (!preg_match('/(\d{1,3}\.){3}\d{1,3}/', $host)) {
-            $this->withHost(System::gethostbyname($host))->withAddedHeader('Host', $host);
-        }
         $this->withMethod($method)
             ->coroutine(
                 $path,