diff --git a/public_html/includes/class/class.LSsession.php b/public_html/includes/class/class.LSsession.php
index 0d2e8dc9..245e45bd 100644
--- a/public_html/includes/class/class.LSsession.php
+++ b/public_html/includes/class/class.LSsession.php
@@ -98,7 +98,7 @@ class LSsession {
     if (!file_exists($file)) {
       return;
     }
-    if (LSdebug) {
+    if (defined('LSdebug') && constant('LSdebug')) {
       return include_once($file);
     }
     else {