diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index c1eb81d7..d104b813 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -3982,10 +3982,9 @@ class Net_SSH2
         switch (NET_SSH2_LOGGING) {
             case NET_SSH2_LOG_SIMPLE:
                 return $this->message_number_log;
-                break;
             case NET_SSH2_LOG_COMPLEX:
-                return $this->_format_log($this->message_log, $this->message_number_log);
-                break;
+                $log = $this->_format_log($this->message_log, $this->message_number_log);
+                return PHP_SAPI == 'cli' ? $log : '<pre>' . $log . '</pre>';
             default:
                 return false;
         }