diff --git a/Connection/TcpConnection.php b/Connection/TcpConnection.php
index b85c6e69a..3f5e732d4 100644
--- a/Connection/TcpConnection.php
+++ b/Connection/TcpConnection.php
@@ -952,6 +952,7 @@ public function destroy()
                 exit(250);
             }
         }
+        $this->_sendBuffer = $this->_recvBuffer = '';
         if ($this->_status === self::STATUS_CLOSED) {
             // Cleaning up the callback to avoid memory leaks.
             $this->onMessage = $this->onClose = $this->onError = $this->onBufferFull = $this->onBufferDrain = null;