diff --git a/htdocs/projet/class/task.class.php b/htdocs/projet/class/task.class.php
index d1b8c41cb78..d8319d35abe 100644
--- a/htdocs/projet/class/task.class.php
+++ b/htdocs/projet/class/task.class.php
@@ -319,6 +319,43 @@ class Task extends CommonObject
             $this->db->rollback();
             return 0;
         }
+        
+        //Delete associated link file
+        	
+    	//retreive project ref to know project folder
+    	$sql = "SELECT p.ref";
+        $sql.= " FROM ".MAIN_DB_PREFIX."projet_task as t INNER JOIN ".MAIN_DB_PREFIX."projet as p ON p.rowid=t.fk_projet";
+        $sql.= " WHERE t.rowid = ".$this->id;
+
+   		dol_syslog(get_class($this)."::delete(retreive proj ref) sql=".$sql, LOG_DEBUG);
+    	$resql_projref=$this->db->query($sql);
+   		if ($resql_projref)
+    	{  
+        	if ($this->db->num_rows($resql_projref))
+        	{
+            	$obj = $this->db->fetch_object($resql_projref);
+            	$projectref	= $obj->ref;
+        	}
+        }
+		$this->db->free($resql_projref);
+		
+        if ($conf->projet->dir_output)
+        {
+            $dir = $conf->projet->dir_output . "/" . dol_sanitizeFileName($projectref) . '/' . dol_sanitizeFileName($this->id);
+            dol_syslog(get_class($this)."::delete(retreive proj ref) dir=".$dir, LOG_DEBUG);
+            if (file_exists($dir))
+            {
+            	require_once(DOL_DOCUMENT_ROOT . "/core/lib/files.lib.php");
+                $res = @dol_delete_dir_recursive($dir);
+                if (!$res)
+                {
+                    $this->error = 'ErrorFailToDeleteDir';
+                    $this->db->rollback();
+                    return 0;
+                }
+            }
+        }
+        
 
         if (! $error)
         {
@@ -332,7 +369,8 @@ class Task extends CommonObject
                 return 0;
             }
         }
-
+        
+     
         // Delete rang of line
         //$this->delRangOfLine($this->id, $this->element);
 
@@ -368,7 +406,8 @@ class Task extends CommonObject
             return -1*$error;
         }
         else
-        {
+        {	
+        	
             $this->db->commit();
             return 1;
         }
@@ -395,6 +434,7 @@ class Task extends CommonObject
         {
             $obj=$this->db->fetch_object($resql);
             if ($obj) $ret=$obj->nb;
+            $this->db->free($resql);
         }
 
         if (! $error)