diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index d1bbb9b..fa34cf2 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -681,7 +681,10 @@ class HttpClient
 			curl_setopt($ch, CURLOPT_POST, 1);
 		}
 
-		if (!empty($data)) {
+		if (!empty($this->_data)) {
+			curl_setopt($ch, CURLOPT_POSTFIELDS, $this->_data);
+		}
+		if ($this->method != self::GET) {
 			curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
 		}