diff --git a/htdocs/admin/triggers.php b/htdocs/admin/triggers.php
index 2b3161a36e2..f7f5fe0ab51 100644
--- a/htdocs/admin/triggers.php
+++ b/htdocs/admin/triggers.php
@@ -1,5 +1,5 @@
 <?php
-/* Copyright (C) 2005-2012 Laurent Destailleur  <eldy@users.sourceforge.net>
+/* Copyright (C) 2005-2013 Laurent Destailleur  <eldy@users.sourceforge.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/htdocs/core/class/interfaces.class.php b/htdocs/core/class/interfaces.class.php
index e4815ded047..deaa2eaac59 100644
--- a/htdocs/core/class/interfaces.class.php
+++ b/htdocs/core/class/interfaces.class.php
@@ -265,6 +265,12 @@ class Interfaces
             $modName = $modules[$key];
             if (empty($modName)) continue;
 
+            if (! class_exists($modName))
+            {
+				print 'Error: A trigger file was found but its class "'.$modName.'" was not found.'."<br>\n";
+            	continue;
+            }
+            
             $objMod = new $modName($this->db);
 
             // Define disabledbyname and disabledbymodule