diff --git a/app/system/system.php b/app/system/system.php
index 648d86e719..075ae9096c 100644
--- a/app/system/system.php
+++ b/app/system/system.php
@@ -372,7 +372,7 @@ $document['title'] = $text['title-sys-status'];
 	}
 
 //memcache information
-	if (if_group("system_view_memcache") && file_exists($_SERVER["PROJECT_ROOT"]."/app/sip_status/app_config.php")){
+	if (permission_exists("system_view_memcache") && file_exists($_SERVER["PROJECT_ROOT"]."/app/sip_status/app_config.php")){
 		echo "<table width='100%' border='0' cellpadding='7' cellspacing='0'>\n";
 		echo "	<tr>\n";
 		echo "		<th class='th' colspan='2' align='left'>".$text['title-memcache']."</th>\n";