diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index b86a3fc4..494abf7a 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -2705,7 +2705,7 @@ class Net_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)