diff --git a/htdocs/core/class/interfaces.class.php b/htdocs/core/class/interfaces.class.php
index abcf2132efa..903a05981b6 100644
--- a/htdocs/core/class/interfaces.class.php
+++ b/htdocs/core/class/interfaces.class.php
@@ -61,7 +61,7 @@ class Interfaces
      *   @param		string		$action     Trigger event code
      *   @param     object		$object     Objet concerned. Some context information may also be provided into array property object->context.
      *   @param     User		$user       Objet user
-     *   @param     Lang		$langs      Objet lang
+     *   @param     Translate	$langs      Objet lang
      *   @param     Conf		$conf       Objet conf
      *   @return    int         			Nb of triggers ran if no error, -Nb of triggers with errors otherwise.
      */
@@ -86,6 +86,7 @@ class Interfaces
             global $db;
             $user = new User($db);
         }
+        dol_syslog(get_class($this)."::run_triggers action=".$action." Launch run_triggers", LOG_DEBUG);
 
         $nbfile = $nbtotal = $nbok = $nbko = 0;
 
@@ -94,6 +95,7 @@ class Interfaces
         $orders = array();
 		$i=0;
 
+
 		$dirtriggers=array_merge(array('/core/triggers'),$conf->modules_parts['triggers']);
         foreach($dirtriggers as $reldir)
         {
@@ -179,7 +181,7 @@ class Interfaces
 
 				if (method_exists($objMod, 'runTrigger'))	// New method to implement
 				{
-	                //dol_syslog(get_class($this)."::run_triggers action=".$action." Launch runTrigger for file '".$files[$key]."'", LOG_DEBUG);
+	                dol_syslog(get_class($this)."::run_triggers action=".$action." Launch runTrigger for file '".$files[$key]."'", LOG_DEBUG);
 	                $result=$objMod->runTrigger($action,$object,$user,$langs,$conf);
 				}
 				elseif (method_exists($objMod, 'run_trigger'))	// Deprecated method