diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index e2571190..d54f2f75 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -2690,7 +2690,7 @@ class SSH2
      *
      * Sends an SSH2_MSG_IGNORE message every x seconds, if x is a positive non-zero number.
      *
-     * @param mixed $timeout
+     * @param int $interval
      * @access public
      */
     function setKeepAlive($interval)