diff --git a/interface/web/monitor/show_sys_state.php b/interface/web/monitor/show_sys_state.php
index a5e1eb0f511914ef07241d144f7944478897eab0..cbe1c613103c2368e9a523fec64d95aba9cca3c0 100644
--- a/interface/web/monitor/show_sys_state.php
+++ b/interface/web/monitor/show_sys_state.php
@@ -203,7 +203,7 @@ function _getServerState($serverId, $serverName, $showAll)
 /*
  * gets the state from the db and process it
  */
-function _processDbState($type, $serverId, &$serverState, &$messages)
+function _processDbState($type, $serverId, $serverState, $messages)
 {
     global $app;