diff --git a/htdocs/admin/triggers.php b/htdocs/admin/triggers.php
index ba0cc449a50..eebbae9b87f 100644
--- a/htdocs/admin/triggers.php
+++ b/htdocs/admin/triggers.php
@@ -58,47 +58,15 @@ print "</tr>\n";
 
 // Define dir directory
 $interfaces=new Interfaces($db);
-$dir = $interfaces->dir;
+$interfaces->getModulesTriggers();
 
 $handle=opendir($dir);
 $files = array();
 $modules = array();
 $orders = array();
 $i = 0;
-while (($file = readdir($handle))!==false)
-{
-    if (is_readable($dir.'/'.$file) && preg_match('/^interface_([^_]+)_(.+)\.class\.php/',$file,$reg))
-    {
-        $modName = 'Interface'.ucfirst($reg[2]);
-		//print "file=$file"; print "modName=$modName"; exit;
-		if (in_array($modName,$modules))
-		{
-			$langs->load("errors");
-			print '<div class="error">'.$langs->trans("Error").' : '.$langs->trans("ErrorDuplicateTrigger",$modName,"/htdocs/includes/triggers/").'</div>';
-			$objMod = new $modName($db);
 
-			$modules[$i] = $modName;
-			$files[$i] = $file;
-			$orders[$i] = $objMod->family;   // Tri par famille
-			$i++;
-		}
-		else
-		{
-			include_once($dir.'/'.$file);
-			$objMod = new $modName($db);
-
-			$modules[$i] = $modName;
-			$files[$i] = $file;
-			$orders[$i] = $objMod->family;   // Tri par famille
-			$i++;
-		}
-    }
-}
-closedir($handle);
-
-// Find external module triggers
-$interfaces->getModulesTriggers();
-foreach($interfaces->pathoftriggers as $dir)
+foreach($interfaces->dir as $dir)
 {
 	$handle=opendir($dir);
 	
diff --git a/htdocs/interfaces.class.php b/htdocs/interfaces.class.php
index 6b9b27c966b..41fa9163b5d 100644
--- a/htdocs/interfaces.class.php
+++ b/htdocs/interfaces.class.php
@@ -33,9 +33,8 @@
 
 class Interfaces
 {
-	var $dir;						// Directory with all core trigger files
-	var $errors			= array();	// Array for errors
-	var $pathoftriggers	= array();	// Array for path of triggers
+	var $dir;				// Directory with all core and external triggers files
+	var $errors	= array();	// Array for errors
 
    /**
 	*   \brief      Constructeur.
@@ -44,7 +43,6 @@ class Interfaces
 	function Interfaces($DB)
 	{
 		$this->db = $DB ;
-		$this->dir = DOL_DOCUMENT_ROOT . "/includes/triggers";
 	}
 
    /**
@@ -155,6 +153,9 @@ class Interfaces
 	{
 		global $conf;
 		
+		// Directory of core triggers
+		$this->dir[] = DOL_DOCUMENT_ROOT . "/includes/triggers";
+		
 		foreach($conf->global as $key => $value)
 		{
 			if (preg_match('/^MAIN_TRIGGER_/',$key)) 
@@ -165,7 +166,7 @@ class Interfaces
 					{
 						$modulename = strtolower($regs[1]);
 						$pathoftrigger = DOL_DOCUMENT_ROOT.'/'.$modulename.'/inc/triggers/';
-						$this->pathoftriggers[] = $pathoftrigger;
+						$this->dir[] = $pathoftrigger;
 					}
 				}
 			}