diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index 2fac68d..a32b210 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -1003,7 +1003,6 @@ class HttpClient
 			}
 			$headers[] = $header;
 		}
-		$this->header = [];
 		return $headers;
 	}