diff --git a/htdocs/compta/prelevement/class/bonprelevement.class.php b/htdocs/compta/prelevement/class/bonprelevement.class.php
index 0a933c64275..9a569a46f7c 100644
--- a/htdocs/compta/prelevement/class/bonprelevement.class.php
+++ b/htdocs/compta/prelevement/class/bonprelevement.class.php
@@ -919,7 +919,7 @@ class BonPrelevement extends CommonObject
 					$dir=$conf->prelevement->dir_output.'/receipts';
 					if (! is_dir($dir)) dol_mkdir($dir);
 					
-					$this->filename = $dir.$ref.'.xml';
+					$this->filename = $dir.'/'.$ref.'.xml';
 
 	                // Create withdraw receipt in database
 	                $sql = "INSERT INTO ".MAIN_DB_PREFIX."prelevement_bons (";